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How to Cite Sources

Here is a complete list for how to cite sources. Most of these guides present citation guidance and examples in MLA, APA, and Chicago.

If you’re looking for general information on MLA or APA citations , the EasyBib Writing Center was designed for you! It has articles on what’s needed in an MLA in-text citation , how to format an APA paper, what an MLA annotated bibliography is, making an MLA works cited page, and much more!

MLA Format Citation Examples

The Modern Language Association created the MLA Style, currently in its 9th edition, to provide researchers with guidelines for writing and documenting scholarly borrowings.  Most often used in the humanities, MLA style (or MLA format ) has been adopted and used by numerous other disciplines, in multiple parts of the world.

MLA provides standard rules to follow so that most research papers are formatted in a similar manner. This makes it easier for readers to comprehend the information. The MLA in-text citation guidelines, MLA works cited standards, and MLA annotated bibliography instructions provide scholars with the information they need to properly cite sources in their research papers, articles, and assignments.

• Book Chapter
• Conference Paper
• Documentary
• Encyclopedia
• Google Images
• Kindle Book
• Memorial Inscription
• Museum Exhibit
• Painting or Artwork
• PowerPoint Presentation
• Sheet Music
• Thesis or Dissertation
• YouTube Video

APA Format Citation Examples

The American Psychological Association created the APA citation style in 1929 as a way to help psychologists, anthropologists, and even business managers establish one common way to cite sources and present content.

APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format ) is now in its 7th edition, and provides citation style guides for virtually any type of resource.

Chicago Style Citation Examples

The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes ) or at the end of a paper (endnotes).

The Turabian and Chicago citation styles are almost identical, but the Turabian style is geared towards student published papers such as theses and dissertations, while the Chicago style provides guidelines for all types of publications. This is why you’ll commonly see Chicago style and Turabian style presented together. The Chicago Manual of Style is currently in its 17th edition, and Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations is in its 8th edition.

Citing Specific Sources or Events

• Declaration of Independence
• Gettysburg Address
• Martin Luther King Jr. Speech
• President Obama’s Farewell Address
• President Trump’s Inauguration Speech
• White House Press Briefing

Additional FAQs

• Citing Archived Contributors
• Citing a Blog
• Citing a Book Chapter
• Citing a Source in a Foreign Language
• Citing an Image
• Citing a Song
• Citing Special Contributors
• Citing a Translated Article
• Citing a Tweet

6 Interesting Citation Facts

The world of citations may seem cut and dry, but there’s more to them than just specific capitalization rules, MLA in-text citations , and other formatting specifications. Citations have been helping researches document their sources for hundreds of years, and are a great way to learn more about a particular subject area.

Ever wonder what sets all the different styles apart, or how they came to be in the first place? Read on for some interesting facts about citations!

1. There are Over 7,000 Different Citation Styles

You may be familiar with MLA and APA citation styles, but there are actually thousands of citation styles used for all different academic disciplines all across the world. Deciding which one to use can be difficult, so be sure to ask you instructor which one you should be using for your next paper.

2. Some Citation Styles are Named After People

While a majority of citation styles are named for the specific organizations that publish them (i.e. APA is published by the American Psychological Association, and MLA format is named for the Modern Language Association), some are actually named after individuals. The most well-known example of this is perhaps Turabian style, named for Kate L. Turabian, an American educator and writer. She developed this style as a condensed version of the Chicago Manual of Style in order to present a more concise set of rules to students.

3. There are Some Really Specific and Uniquely Named Citation Styles

How specific can citation styles get? The answer is very. For example, the “Flavour and Fragrance Journal” style is based on a bimonthly, peer-reviewed scientific journal published since 1985 by John Wiley & Sons. It publishes original research articles, reviews and special reports on all aspects of flavor and fragrance. Another example is “Nordic Pulp and Paper Research,” a style used by an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents.

4. More citations were created on  EasyBib.com  in the first quarter of 2018 than there are people in California.

The US Census Bureau estimates that approximately 39.5 million people live in the state of California. Meanwhile, about 43 million citations were made on EasyBib from January to March of 2018. That’s a lot of citations.

5. “Citations” is a Word With a Long History

The word “citations” can be traced back literally thousands of years to the Latin word “citare” meaning “to summon, urge, call; put in sudden motion, call forward; rouse, excite.” The word then took on its more modern meaning and relevance to writing papers in the 1600s, where it became known as the “act of citing or quoting a passage from a book, etc.”

6. Citation Styles are Always Changing

The concept of citations always stays the same. It is a means of preventing plagiarism and demonstrating where you relied on outside sources. The specific style rules, however, can and do change regularly. For example, in 2018 alone, 46 new citation styles were introduced , and 106 updates were made to exiting styles. At EasyBib, we are always on the lookout for ways to improve our styles and opportunities to add new ones to our list.

Why Citations Matter

Here are the ways accurate citations can help your students achieve academic success, and how you can answer the dreaded question, “why should I cite my sources?”

They Give Credit to the Right People

Citing their sources makes sure that the reader can differentiate the student’s original thoughts from those of other researchers. Not only does this make sure that the sources they use receive proper credit for their work, it ensures that the student receives deserved recognition for their unique contributions to the topic. Whether the student is citing in MLA format , APA format , or any other style, citations serve as a natural way to place a student’s work in the broader context of the subject area, and serve as an easy way to gauge their commitment to the project.

They Provide Hard Evidence of Ideas

Having many citations from a wide variety of sources related to their idea means that the student is working on a well-researched and respected subject. Citing sources that back up their claim creates room for fact-checking and further research . And, if they can cite a few sources that have the converse opinion or idea, and then demonstrate to the reader why they believe that that viewpoint is wrong by again citing credible sources, the student is well on their way to winning over the reader and cementing their point of view.

They Promote Originality and Prevent Plagiarism

The point of research projects is not to regurgitate information that can already be found elsewhere. We have Google for that! What the student’s project should aim to do is promote an original idea or a spin on an existing idea, and use reliable sources to promote that idea. Copying or directly referencing a source without proper citation can lead to not only a poor grade, but accusations of academic dishonesty. By citing their sources regularly and accurately, students can easily avoid the trap of plagiarism , and promote further research on their topic.

They Create Better Researchers

By researching sources to back up and promote their ideas, students are becoming better researchers without even knowing it! Each time a new source is read or researched, the student is becoming more engaged with the project and is developing a deeper understanding of the subject area. Proper citations demonstrate a breadth of the student’s reading and dedication to the project itself. By creating citations, students are compelled to make connections between their sources and discern research patterns. Each time they complete this process, they are helping themselves become better researchers and writers overall.

When is the Right Time to Start Making Citations?

Make in-text/parenthetical citations as you need them.

As you are writing your paper, be sure to include references within the text that correspond with references in a works cited or bibliography. These are usually called in-text citations or parenthetical citations in MLA and APA formats. The most effective time to complete these is directly after you have made your reference to another source. For instance, after writing the line from Charles Dickens’ A Tale of Two Cities : “It was the best of times, it was the worst of times…,” you would include a citation like this (depending on your chosen citation style):

(Dickens 11).

This signals to the reader that you have referenced an outside source. What’s great about this system is that the in-text citations serve as a natural list for all of the citations you have made in your paper, which will make completing the works cited page a whole lot easier. After you are done writing, all that will be left for you to do is scan your paper for these references, and then build a works cited page that includes a citation for each one.

Need help creating an MLA works cited page ? Try the MLA format generator on EasyBib.com! We also have a guide on how to format an APA reference page .

2. Understand the General Formatting Rules of Your Citation Style Before You Start Writing

While reading up on paper formatting may not sound exciting, being aware of how your paper should look early on in the paper writing process is super important. Citation styles can dictate more than just the appearance of the citations themselves, but rather can impact the layout of your paper as a whole, with specific guidelines concerning margin width, title treatment, and even font size and spacing. Knowing how to organize your paper before you start writing will ensure that you do not receive a low grade for something as trivial as forgetting a hanging indent.

Don’t know where to start? Here’s a formatting guide on APA format .

3. Double-check All of Your Outside Sources for Relevance and Trustworthiness First

Collecting outside sources that support your research and specific topic is a critical step in writing an effective paper. But before you run to the library and grab the first 20 books you can lay your hands on, keep in mind that selecting a source to include in your paper should not be taken lightly. Before you proceed with using it to backup your ideas, run a quick Internet search for it and see if other scholars in your field have written about it as well. Check to see if there are book reviews about it or peer accolades. If you spot something that seems off to you, you may want to consider leaving it out of your work. Doing this before your start making citations can save you a ton of time in the long run.

Finished with your paper? It may be time to run it through a grammar and plagiarism checker , like the one offered by EasyBib Plus. If you’re just looking to brush up on the basics, our grammar guides  are ready anytime you are.

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Research Guides

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APA Style 7th Edition Tutorials for Students in Psychology and Social Work

What is apa style.

• The Importance of Citing

Why is APA Style needed?

How do i get started with apa style, let us practice what we have learned, attribution and acknowledgement.

• Basics of APA Style Tutorial
• Reference Entry Elements
• Reference Examples
• Reference List
• In-Text Citations
• Student Paper Format
• Managing References - Zotero

Origination of APA Style

• Where did APA Style come from?

Commonly Used APA Related Terms

Abstract : Abstract is a brief synopses of article. It provides a brief but comprehensive summary of the article. 

Citing : In the context of academic writing, citing is the act of acknowledging the sources of information you have used when writing your work.

Citation:  A citation gives credit to a source, and contains publication information such as author(s), title and date.

DOI (digital object identifier): It is a unique alphanumeric string assigned to a digital object, mainly a scholarly article, to provide a persistent link to its location on the internet. 

In-Text Citation : It is a brief note that appears within the body of the paper and briefly identifies the cited work by its author and date of publication. An in-text citation should always match the corresponding entry in the reference list at the end of paper.

Paraphrasing : A paraphrase restates another’s idea (or your own previously published idea) in your own words. 

Plagiarism : It is the act of presenting the words, ideas, or images of another as your own; it denies creators of content the credit they are due. 

Quoting : It is the act of reproducing the exact wording used by the original author. Direct quotations appear within quotation marks and end with a citation.

Reference : It contains details about one cited work, generally including four elements:  author, date, title, and source.  

Reference List : It identifies all the sources you cited in the text of your paper. It generally is at the end of the paper and definitely on a new page after the text of your paper. 

APA Style is the most common writing style used in college and career. Its purpose is to promote excellence in communication by helping writers create clear, precise, and inclusive sentences with a straightforward scholarly tone. It addresses areas of writing such as how to

• format a paper so it looks professional;
• credit other people’s words and ideas via citations and references to avoid plagiarism; and
• describe other people with dignity and respect using inclusive, bias-free language.

APA Style is primarily used in the behavioral sciences, which are subjects related to people, such as psychology, education, and nursing. It is also used by students in business, engineering, communications, and other classes. Students use it to write academic essays and research papers in college, and professionals use it to conduct, report, and publish scientific research.

In addition, APA Style provides you with a powerful tool that will hep you avoid deliberate or unintentional plagiarism. Please review the Avoiding Plagiarism Guide created by the APA experts to understand what two common types of plagiarism are and how to avoid them. 

Why is learning citations important? Citations help readers understand where the information used in your paper comes from, enabling them to trace the path of that information. When readers wish to explore a specific point or reference cited in the text, citations make it easier by providing information about your sources in a standardized format.

Besides showing readers where you obtained information, using citations also has a strong ethical purpose. In academic writing, it is important to credit ideas that are not your own. Citations allow you to integrate the ideas of others with your own thoughts in a fair and honest way.

The reference formats for APA Style manuals are as follows:

APA Style provides a foundation for effective scholarly communication because it helps authors present their ideas in a clear and concise, and organized manner.  Uniformity and consistency enable readers to (a) focus on the ideas being presented rather than formatting and (b) scan works quickly for key points, findings, and sources. When style works best, ideas flow logically, sources are credited appropriately, and papers are organized predictably and consistently. 

Students are encouraged to first learn about APA Style by reading works written in APA Style. A couple of guides created by APA experts from the American Psychological Association can help you with that:

Anatomy of a Journal Article   https://apastyle.apa.org/instructional-aids/anatomy-journal-article.pdf

Scholarly journal articles share a common anatomy or structure. Each part of an article serves a specific purpose. The handout of  Anatomy of a Journal Article explains how journal articles are structured and how to become more efficient at reading and understanding them. Understanding the structure of a scholarly article and the purpose of each part helps you grasp a strategy called targeted reading. Targeted reading means to read specific sections of research articles first to determine if the article seems useful for your research topic. This way you will save time, find useful article faster, and choose which articles to read in full.

Reading and Understanding Abstracts https://apastyle.apa.org/instructional-aids/reading-abstracts.pdf

Abstracts are short summaries of scientific research articles. The handout of Reading & Understanding Abstracts explains the definition and purpose of abstracts and the benefits of reading them, including analysis of a sample abstract. The skill of reading and understanding abstracts of scholarly articles not only saves time but also helps you conduct better research and write more effectively.

APA Style Writing Principles https://apastyle.apa.org/instructional-aids/writing-principles.pdf

The poster created by APA experts shows the three main principles of APA Style: clarity, precision, and inclusion and lists steps on how to achieve them. As a student writer, you always should write your academic paper with clarity, precision, and inclusion. 

Research Article Activity https://apastyle.apa.org/instructional-aids/apa-style-research-activity.pdf

Reading research articles is not an easy task for you as a student. The Research Article Activity designed by APA Style experts aims to make it easy to read and understand a scholarly article. This activity worksheet helps you find, cite, analyze, and summarize a research article. Completing this activity breaks down a lengthy research article into easily understandable chunks. This way helps you better understand the study in the article before you write about it. 

The information in this Guide   is courtesy of   the official APA Style website by the American Psychological Association.

Source Credit: Information on this LibGuide comes from APA Style website https://apastyle.apa.org/ This website has a wealth of free and authoritative resources designed to help anyone new to APA Style.

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Home » How to Cite Research Paper – All Formats and Examples

How to Cite Research Paper – All Formats and Examples

Table of Contents

Research Paper Citation

Research paper citation refers to the act of acknowledging and referencing a previously published work in a scholarly or academic paper . When citing sources, researchers provide information that allows readers to locate the original source, validate the claims or arguments made in the paper, and give credit to the original author(s) for their work.

The citation may include the author’s name, title of the publication, year of publication, publisher, and other relevant details that allow readers to trace the source of the information. Proper citation is a crucial component of academic writing, as it helps to ensure accuracy, credibility, and transparency in research.

How to Cite Research Paper

There are several formats that are used to cite a research paper. Follow the guide for the Citation of a Research Paper:

Last Name, First Name. Title of Book. Publisher, Year of Publication.

Example : Smith, John. The History of the World. Penguin Press, 2010.

Journal Article

Last Name, First Name. “Title of Article.” Title of Journal, vol. Volume Number, no. Issue Number, Year of Publication, pp. Page Numbers.

Example : Johnson, Emma. “The Effects of Climate Change on Agriculture.” Environmental Science Journal, vol. 10, no. 2, 2019, pp. 45-59.

Research Paper

Last Name, First Name. “Title of Paper.” Conference Name, Location, Date of Conference.

Example : Garcia, Maria. “The Importance of Early Childhood Education.” International Conference on Education, Paris, 5-7 June 2018.

Author’s Last Name, First Name. “Title of Webpage.” Website Title, Publisher, Date of Publication, URL.

Example : Smith, John. “The Benefits of Exercise.” Healthline, Healthline Media, 1 March 2022, https://www.healthline.com/health/benefits-of-exercise.

News Article

Last Name, First Name. “Title of Article.” Name of Newspaper, Date of Publication, URL.

Example : Robinson, Sarah. “Biden Announces New Climate Change Policies.” The New York Times, 22 Jan. 2021, https://www.nytimes.com/2021/01/22/climate/biden-climate-change-policies.html.

Author, A. A. (Year of publication). Title of book. Publisher.

Example: Smith, J. (2010). The History of the World. Penguin Press.

Author, A. A., Author, B. B., & Author, C. C. (Year of publication). Title of article. Title of Journal, volume number(issue number), page range.

Example: Johnson, E., Smith, K., & Lee, M. (2019). The Effects of Climate Change on Agriculture. Environmental Science Journal, 10(2), 45-59.

Author, A. A. (Year of publication). Title of paper. In Editor First Initial. Last Name (Ed.), Title of Conference Proceedings (page numbers). Publisher.

Example: Garcia, M. (2018). The Importance of Early Childhood Education. In J. Smith (Ed.), Proceedings from the International Conference on Education (pp. 60-75). Springer.

Author, A. A. (Year, Month Day of publication). Title of webpage. Website name. URL

Example: Smith, J. (2022, March 1). The Benefits of Exercise. Healthline. https://www.healthline.com/health/benefits-of-exercise

Author, A. A. (Year, Month Day of publication). Title of article. Newspaper name. URL.

Example: Robinson, S. (2021, January 22). Biden Announces New Climate Change Policies. The New York Times. https://www.nytimes.com/2021/01/22/climate/biden-climate-change-policies.html

Chicago/Turabian style

Please note that there are two main variations of the Chicago style: the author-date system and the notes and bibliography system. I will provide examples for both systems below.

Author-Date system:

• In-text citation: (Author Last Name Year, Page Number)
• Reference list: Author Last Name, First Name. Year. Title of Book. Place of publication: Publisher.
• In-text citation: (Smith 2005, 28)
• Reference list: Smith, John. 2005. The History of America. New York: Penguin Press.

Notes and Bibliography system:

• Footnote/Endnote citation: Author First Name Last Name, Title of Book (Place of publication: Publisher, Year), Page Number.
• Bibliography citation: Author Last Name, First Name. Title of Book. Place of publication: Publisher, Year.
• Footnote/Endnote citation: John Smith, The History of America (New York: Penguin Press, 2005), 28.
• Bibliography citation: Smith, John. The History of America. New York: Penguin Press, 2005.

JOURNAL ARTICLES:

• Reference list: Author Last Name, First Name. Year. “Article Title.” Journal Title Volume Number (Issue Number): Page Range.
• In-text citation: (Johnson 2010, 45)
• Reference list: Johnson, Mary. 2010. “The Impact of Social Media on Society.” Journal of Communication 60(2): 39-56.
• Footnote/Endnote citation: Author First Name Last Name, “Article Title,” Journal Title Volume Number, Issue Number (Year): Page Range.
• Bibliography citation: Author Last Name, First Name. “Article Title.” Journal Title Volume Number, Issue Number (Year): Page Range.
• Footnote/Endnote citation: Mary Johnson, “The Impact of Social Media on Society,” Journal of Communication 60, no. 2 (2010): 39-56.
• Bibliography citation: Johnson, Mary. “The Impact of Social Media on Society.” Journal of Communication 60, no. 2 (2010): 39-56.

RESEARCH PAPERS:

• Reference list: Author Last Name, First Name. Year. “Title of Paper.” Conference Proceedings Title, Location, Date. Publisher, Page Range.
• In-text citation: (Jones 2015, 12)
• Reference list: Jones, David. 2015. “The Effects of Climate Change on Agriculture.” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015. Springer, 10-20.
• Footnote/Endnote citation: Author First Name Last Name, “Title of Paper,” Conference Proceedings Title, Location, Date (Place of publication: Publisher, Year), Page Range.
• Bibliography citation: Author Last Name, First Name. “Title of Paper.” Conference Proceedings Title, Location, Date. Place of publication: Publisher, Year.
• Footnote/Endnote citation: David Jones, “The Effects of Climate Change on Agriculture,” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015 (New York: Springer, 10-20).
• Bibliography citation: Jones, David. “The Effects of Climate Change on Agriculture.” Proceedings of the International Conference on Climate Change, Paris, France, June 1-3, 2015. New York: Springer, 10-20.
• In-text citation: (Author Last Name Year)
• Reference list: Author Last Name, First Name. Year. “Title of Webpage.” Website Name. URL.
• In-text citation: (Smith 2018)
• Reference list: Smith, John. 2018. “The Importance of Recycling.” Environmental News Network. https://www.enn.com/articles/54374-the-importance-of-recycling.
• Footnote/Endnote citation: Author First Name Last Name, “Title of Webpage,” Website Name, URL (accessed Date).
• Bibliography citation: Author Last Name, First Name. “Title of Webpage.” Website Name. URL (accessed Date).
• Footnote/Endnote citation: John Smith, “The Importance of Recycling,” Environmental News Network, https://www.enn.com/articles/54374-the-importance-of-recycling (accessed April 8, 2023).
• Bibliography citation: Smith, John. “The Importance of Recycling.” Environmental News Network. https://www.enn.com/articles/54374-the-importance-of-recycling (accessed April 8, 2023).

NEWS ARTICLES:

• Reference list: Author Last Name, First Name. Year. “Title of Article.” Name of Newspaper, Month Day.
• In-text citation: (Johnson 2022)
• Reference list: Johnson, Mary. 2022. “New Study Finds Link Between Coffee and Longevity.” The New York Times, January 15.
• Footnote/Endnote citation: Author First Name Last Name, “Title of Article,” Name of Newspaper (City), Month Day, Year.
• Bibliography citation: Author Last Name, First Name. “Title of Article.” Name of Newspaper (City), Month Day, Year.
• Footnote/Endnote citation: Mary Johnson, “New Study Finds Link Between Coffee and Longevity,” The New York Times (New York), January 15, 2022.
• Bibliography citation: Johnson, Mary. “New Study Finds Link Between Coffee and Longevity.” The New York Times (New York), January 15, 2022.

Harvard referencing style

Format: Author’s Last name, First initial. (Year of publication). Title of book. Publisher.

Example: Smith, J. (2008). The Art of War. Random House.

Journal article:

Format: Author’s Last name, First initial. (Year of publication). Title of article. Title of journal, volume number(issue number), page range.

Example: Brown, M. (2012). The impact of social media on business communication. Harvard Business Review, 90(12), 85-92.

Research paper:

Format: Author’s Last name, First initial. (Year of publication). Title of paper. In Editor’s First initial. Last name (Ed.), Title of book (page range). Publisher.

Example: Johnson, R. (2015). The effects of climate change on agriculture. In S. Lee (Ed.), Climate Change and Sustainable Development (pp. 45-62). Springer.

Format: Author’s Last name, First initial. (Year, Month Day of publication). Title of page. Website name. URL.

Example: Smith, J. (2017, May 23). The history of the internet. Encyclopedia Britannica. https://www.britannica.com/topic/history-of-the-internet

News article:

Format: Author’s Last name, First initial. (Year, Month Day of publication). Title of article. Title of newspaper, page number (if applicable).

Example: Thompson, E. (2022, January 5). New study finds coffee may lower risk of dementia. The New York Times, A1.

IEEE Format

Author(s). (Year of Publication). Title of Book. Publisher.

Smith, J. K. (2015). The Power of Habit: Why We Do What We Do in Life and Business. Random House.

Journal Article:

Author(s). (Year of Publication). Title of Article. Title of Journal, Volume Number (Issue Number), page numbers.

Johnson, T. J., & Kaye, B. K. (2016). Interactivity and the Future of Journalism. Journalism Studies, 17(2), 228-246.

Author(s). (Year of Publication). Title of Paper. Paper presented at Conference Name, Location.

Jones, L. K., & Brown, M. A. (2018). The Role of Social Media in Political Campaigns. Paper presented at the 2018 International Conference on Social Media and Society, Copenhagen, Denmark.

• Website: Author(s) or Organization Name. (Year of Publication or Last Update). Title of Webpage. Website Name. URL.

Example: National Aeronautics and Space Administration. (2019, August 29). NASA’s Mission to Mars. NASA. https://www.nasa.gov/topics/journeytomars/index.html

• News Article: Author(s). (Year of Publication). Title of Article. Name of News Source. URL.

Example: Johnson, M. (2022, February 16). Climate Change: Is it Too Late to Save the Planet? CNN. https://www.cnn.com/2022/02/16/world/climate-change-planet-scn/index.html

Vancouver Style

In-text citation: Use superscript numbers to cite sources in the text, e.g., “The study conducted by Smith and Johnson^1 found that…”.

Reference list citation: Format: Author(s). Title of book. Edition if any. Place of publication: Publisher; Year of publication.

Example: Smith J, Johnson L. Introduction to Molecular Biology. 2nd ed. New York: Wiley-Blackwell; 2015.

In-text citation: Use superscript numbers to cite sources in the text, e.g., “Several studies have reported that^1,2,3…”.

Reference list citation: Format: Author(s). Title of article. Abbreviated name of journal. Year of publication; Volume number (Issue number): Page range.

Example: Jones S, Patel K, Smith J. The effects of exercise on cardiovascular health. J Cardiol. 2018; 25(2): 78-84.

In-text citation: Use superscript numbers to cite sources in the text, e.g., “Previous research has shown that^1,2,3…”.

Reference list citation: Format: Author(s). Title of paper. In: Editor(s). Title of the conference proceedings. Place of publication: Publisher; Year of publication. Page range.

Example: Johnson L, Smith J. The role of stem cells in tissue regeneration. In: Patel S, ed. Proceedings of the 5th International Conference on Regenerative Medicine. London: Academic Press; 2016. p. 68-73.

In-text citation: Use superscript numbers to cite sources in the text, e.g., “According to the World Health Organization^1…”.

Reference list citation: Format: Author(s). Title of webpage. Name of website. URL [Accessed Date].

Example: World Health Organization. Coronavirus disease (COVID-19) advice for the public. World Health Organization. https://www.who.int/emergencies/disease/novel-coronavirus-2019/advice-for-public [Accessed 3 March 2023].

In-text citation: Use superscript numbers to cite sources in the text, e.g., “According to the New York Times^1…”.

Reference list citation: Format: Author(s). Title of article. Name of newspaper. Year Month Day; Section (if any): Page number.

Example: Jones S. Study shows that sleep is essential for good health. The New York Times. 2022 Jan 12; Health: A8.

Author(s). Title of Book. Edition Number (if it is not the first edition). Publisher: Place of publication, Year of publication.

Example: Smith, J. Chemistry of Natural Products. 3rd ed.; CRC Press: Boca Raton, FL, 2015.

Journal articles:

Author(s). Article Title. Journal Name Year, Volume, Inclusive Pagination.

Example: Garcia, A. M.; Jones, B. A.; Smith, J. R. Selective Synthesis of Alkenes from Alkynes via Catalytic Hydrogenation. J. Am. Chem. Soc. 2019, 141, 10754-10759.

Research papers:

Author(s). Title of Paper. Journal Name Year, Volume, Inclusive Pagination.

Example: Brown, H. D.; Jackson, C. D.; Patel, S. D. A New Approach to Photovoltaic Solar Cells. J. Mater. Chem. 2018, 26, 134-142.

Author(s) (if available). Title of Webpage. Name of Website. URL (accessed Month Day, Year).

Example: National Institutes of Health. Heart Disease and Stroke. National Heart, Lung, and Blood Institute. https://www.nhlbi.nih.gov/health-topics/heart-disease-and-stroke (accessed April 7, 2023).

News articles:

Author(s). Title of Article. Name of News Publication. Date of Publication. URL (accessed Month Day, Year).

Example: Friedman, T. L. The World is Flat. New York Times. April 7, 2023. https://www.nytimes.com/2023/04/07/opinion/world-flat-globalization.html (accessed April 7, 2023).

In AMA Style Format, the citation for a book should include the following information, in this order:

• Title of book (in italics)
• Edition (if applicable)
• Place of publication
• Year of publication

Lodish H, Berk A, Zipursky SL, et al. Molecular Cell Biology. 4th ed. New York, NY: W. H. Freeman; 2000.

In AMA Style Format, the citation for a journal article should include the following information, in this order:

• Title of article
• Abbreviated title of journal (in italics)
• Year of publication; volume number(issue number):page numbers.

Chen H, Huang Y, Li Y, et al. Effects of mindfulness-based stress reduction on depression in adolescents and young adults: a systematic review and meta-analysis. JAMA Netw Open. 2020;3(6):e207081. doi:10.1001/jamanetworkopen.2020.7081

In AMA Style Format, the citation for a research paper should include the following information, in this order:

• Title of paper
• Name of journal or conference proceeding (in italics)
• Volume number(issue number):page numbers.

Bredenoord AL, Kroes HY, Cuppen E, Parker M, van Delden JJ. Disclosure of individual genetic data to research participants: the debate reconsidered. Trends Genet. 2011;27(2):41-47. doi:10.1016/j.tig.2010.11.004

In AMA Style Format, the citation for a website should include the following information, in this order:

• Title of web page or article
• Name of website (in italics)
• Date of publication or last update (if available)
• URL (website address)
• Date of access (month day, year)

Centers for Disease Control and Prevention. How to protect yourself and others. CDC. Published February 11, 2022. Accessed February 14, 2022. https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/prevention.html

In AMA Style Format, the citation for a news article should include the following information, in this order:

• Name of newspaper or news website (in italics)
• Date of publication

Gorman J. Scientists use stem cells from frogs to build first living robots. The New York Times. January 13, 2020. Accessed January 14, 2020. https://www.nytimes.com/2020/01/13/science/living-robots-xenobots.html

Bluebook Format

One author: Daniel J. Solove, The Future of Reputation: Gossip, Rumor, and Privacy on the Internet (Yale University Press 2007).

Two or more authors: Martha Nussbaum and Saul Levmore, eds., The Offensive Internet: Speech, Privacy, and Reputation (Harvard University Press 2010).

Journal article

One author: Daniel J. Solove, “A Taxonomy of Privacy,” University of Pennsylvania Law Review 154, no. 3 (January 2006): 477-560.

Two or more authors: Ethan Katsh and Andrea Schneider, “The Emergence of Online Dispute Resolution,” Journal of Dispute Resolution 2003, no. 1 (2003): 7-19.

One author: Daniel J. Solove, “A Taxonomy of Privacy,” GWU Law School Public Law Research Paper No. 113, 2005.

Two or more authors: Ethan Katsh and Andrea Schneider, “The Emergence of Online Dispute Resolution,” Cyberlaw Research Paper Series Paper No. 00-5, 2000.

WebsiteElectronic Frontier Foundation, “Surveillance Self-Defense,” accessed April 8, 2023, https://ssd.eff.org/.

News article

One author: Mark Sherman, “Court Deals Major Blow to Net Neutrality Rules,” ABC News, January 14, 2014, https://abcnews.go.com/Politics/wireStory/court-deals-major-blow-net-neutrality-rules-21586820.

Two or more authors: Siobhan Hughes and Brent Kendall, “AT&T Wins Approval to Buy Time Warner,” Wall Street Journal, June 12, 2018, https://www.wsj.com/articles/at-t-wins-approval-to-buy-time-warner-1528847249.

In-Text Citation: (Author’s last name Year of Publication: Page Number)

Example: (Smith 2010: 35)

Reference List Citation: Author’s last name First Initial. Title of Book. Edition. Place of publication: Publisher; Year of publication.

Example: Smith J. Biology: A Textbook. 2nd ed. New York: Oxford University Press; 2010.

Example: (Johnson 2014: 27)

Reference List Citation: Author’s last name First Initial. Title of Article. Abbreviated Title of Journal. Year of publication;Volume(Issue):Page Numbers.

Example: Johnson S. The role of dopamine in addiction. J Neurosci. 2014;34(8): 2262-2272.

Example: (Brown 2018: 10)

Reference List Citation: Author’s last name First Initial. Title of Paper. Paper presented at: Name of Conference; Date of Conference; Place of Conference.

Example: Brown R. The impact of social media on mental health. Paper presented at: Annual Meeting of the American Psychological Association; August 2018; San Francisco, CA.

Example: (World Health Organization 2020: para. 2)

Reference List Citation: Author’s last name First Initial. Title of Webpage. Name of Website. URL. Published date. Accessed date.

Example: World Health Organization. Coronavirus disease (COVID-19) pandemic. WHO website. https://www.who.int/emergencies/disease-coronavirus-2019. Updated August 17, 2020. Accessed September 5, 2021.

Example: (Smith 2019: para. 5)

Reference List Citation: Author’s last name First Initial. Title of Article. Title of Newspaper or Magazine. Year of publication; Month Day:Page Numbers.

Example: Smith K. New study finds link between exercise and mental health. The New York Times. 2019;May 20: A6.

Purpose of Research Paper Citation

The purpose of citing sources in a research paper is to give credit to the original authors and acknowledge their contribution to your work. By citing sources, you are also demonstrating the validity and reliability of your research by showing that you have consulted credible and authoritative sources. Citations help readers to locate the original sources that you have referenced and to verify the accuracy and credibility of your research. Additionally, citing sources is important for avoiding plagiarism, which is the act of presenting someone else’s work as your own. Proper citation also shows that you have conducted a thorough literature review and have used the existing research to inform your own work. Overall, citing sources is an essential aspect of academic writing and is necessary for building credibility, demonstrating research skills, and avoiding plagiarism.

Advantages of Research Paper Citation

There are several advantages of research paper citation, including:

• Giving credit: By citing the works of other researchers in your field, you are acknowledging their contribution and giving credit where it is due.
• Strengthening your argument: Citing relevant and reliable sources in your research paper can strengthen your argument and increase its credibility. It shows that you have done your due diligence and considered various perspectives before drawing your conclusions.
• Demonstrating familiarity with the literature : By citing various sources, you are demonstrating your familiarity with the existing literature in your field. This is important as it shows that you are well-informed about the topic and have done a thorough review of the available research.
• Providing a roadmap for further research: By citing relevant sources, you are providing a roadmap for further research on the topic. This can be helpful for future researchers who are interested in exploring the same or related issues.
• Building your own reputation: By citing the works of established researchers in your field, you can build your own reputation as a knowledgeable and informed scholar. This can be particularly helpful if you are early in your career and looking to establish yourself as an expert in your field.

About the author

Muhammad Hassan

Researcher, Academic Writer, Web developer

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APA Citation Format Guide: Everything You Need (with Examples)

Hannah Yang

APA Style is one of the most common formats used for papers related to the social sciences.

The purpose of APA Style is to make sure all papers follow a standardized set of guidelines. This helps make them as clear and readable as possible.

If you’re writing an APA paper, you’ve come to the right place.

In this article, you’ll find a complete guide for how to use APA formatting for in-text citations, reference pages, title pages, and more.

How Do You Create an APA In-Text Citation?

How do you create an apa reference page, how do you create an apa title page, what is the difference between mla formatting and apa formatting, where can you learn more about apa formatting, final words on apa citation.

When you use someone else’s work as a source in your own paper, you’ll need to include an in-text citation.

Let’s take a look at what in-text citations are for, and how to format them correctly.

What’s the Purpose of APA In-Text Citations?

In-text citations make your work more trustworthy by referencing other reliable sources.

When you use in-text citations, readers know you’re not pulling quotes and figures out of thin air. If they want to find out more about how those quotes and figures were created, they’ll be able to look up and read the original source.

If you reference other people’s work without citing the source, you run the risk of plagiarism, which is when you claim others’ work as your own. Plagiarizing, even by accident, can jeopardize your reputation, so make sure to use in-text citations properly.

For extra help in avoiding plagiarism, sign up for ProWritingAid’s Plagiarism Checker . Unlike other plagiarism checkers, ProWritingAid will not store or share your work. Ever.

When Do You Need to Use an In-Text Citation?

You should use an in-text citation every time you do the following things:

• Use a direct quote (i.e. the exact words the source used)
• Paraphrase the ideas of someone else (i.e. give the information in your own words)
• Mention a fact or figure that isn’t common knowledge
• Refer to data
• Use someone else’s table or figure
• Use a long text passage from someone else’s work

What Information Do You Need to Include in an APA In-Text Citation?

For every in-text citation, you need to provide two pieces of information: the last name of the author and the publication date .

If you’re using a direct quote, or a fact or figure from a specific page, you should also provide the page number that information is found on.

How Do You Format an APA In-Text Citation?

You should place the in-text citation immediately after the word or phrase it’s relevant to, rather than after a long paragraph or sentence.

You can reference sources using either parenthetical or narrative citations, depending on which one works better in the sentence you’re writing.

A parenthetical citation is when you write a normal sentence, and then include the author’s name and the year in parentheses. A narrative citation is when you mention the author’s last name within your sentence, as part of the text itself.

Let’s look at some examples from the universe of the Harry Potter series by J.K. Rowling.

Examples of parenthetical citations:

• It’s not a good idea to tickle a sleeping dragon (Scamander, 1927), because you might get burned.
• Medieval witches who were burned at the stake would just perform a basic Flame-Freezing Charm so the fire had no effect (Bagshot, 1947).

Examples of narrative citations:

• According to Scamander (1927), it’s not a good idea to tickle a sleeping dragon, because you might get burned.
• Bagshot (1947) claimed that medieval witches who were burned at the stake would just perform a basic Flame-Freezing Charm, so the fire had no effect.

When possible, you should also include the page number the quote is found on.

Use the abbreviation “p.” for one page, or “pp.” for multiple pages, before listing the page number. For example, you might write (Bagshot, 1947, p. 129) or (Bagshot, 1947, pp. 129–131).

Example of parenthetical citations with page numbers:

• “Never tickle a sleeping dragon” (Scamander, 1927, p. 31).
• “Indeed, Wendelin the Weird enjoyed being burned so much that she allowed herself to be caught no less than forty-seven times in various disguises” (Bagshot, 1947, p. 129).

Examples of narrative citations with page numbers:

• According to Scamander (1927), one should “never tickle a sleeping dragon” (p. 31).
• Bagshot (1947) claimed that “Wendelin the Weird enjoyed being burned so much that she allowed herself to be caught no less than forty-seven times in various disguises” (p. 129).

What If a Source Has Multiple Authors?

If a source has two authors, include both of their last names in the in-text citation.

If you're using a parenthetical citation, use an ampersand between the names: (Name & name, year.)

• (Dumbledore & McGonagall, 1995)

If you’re using a narrative citation, write out the word “and”: (Name and name (year)...)

• Research by Dumbledore and McGonagall (1995) supports...

If a source has three or more authors, include the first author listed on the source, plus the words “ et al. ” (Name et al., year.)

The term “et al.” is short for the Latin term “et alia,” which means “and others.” You’ll often see it used in academic papers with multiple authors.

• (Dumbledore et al., 1995)
• Research by Dumbledore et al. (1995) supports...

What If a Source Has an Unknown Author?

If a source has an unknown author, you can cite the source by its title instead of by its author.

• A group of witches invented a spell to transform inert objects into living creatures ( Intermediate Transfiguration , 1987).
• We learn in The Monster Book of Monsters (1999) that some creatures have extremely sharp teeth.

What If a Source Has an Unknown Date?

If a source has an unknown date, you can write “n.d.” (for no date ) instead of the year.

• A group of witches invented a spell to transform inert objects into living creatures ( Intermediate Transfiguration , n.d.).
• We learn in The Monster Book of Monsters (n.d.) that some creatures have extremely sharp teeth.

How Many In-Text Citations Do You Need in Your Paper?

For most papers, you should cite one or two of the most representative sources for each key point.

For example, if you state that 41 percent of Americans like the Harry Potter series, you should provide at least one source that also states that same number.

If you’re writing a literature review paper, you should include a more exhaustive list of references because you want to include all the most relevant sources for that subject.

The APA reference page is a section of your paper where you list each of the sources you use in your paper.

Let’s take a look at what the APA reference page is for and how to format it correctly.

What’s the Purpose of the APA Reference Page?

For every source you cite in-text, you also need to create a reference at the end of the paper with all the information necessary to find that source.

Your goal is to make it clear exactly which source you’re citing, with no room for ambiguity, so that anyone reading your paper can clearly track down every source you used.

Where Should You Put the APA Reference Page?

The APA reference page should be the last section of the paper. It should come right after the main body of your paper, before any appendices.

Which Sources Do You Have to Include on the Reference Page?

You need to create a reference entry for every source that you’ve cited in the text. Any time you quote another author or use another author’s facts and figures, you need to make a reference entry for that source.

Make sure you don’t include any sources you don’t cite, even if you read them for research. Every reference entry in your reference page should be used directly in an in-text citation.

You can include any type of source in your reference page: books, chapters, articles, reports, web pages, and more.

What Information Do You Need to Include in an APA Reference Entry?

APA references typically include information about the author , publication date , title , and source .

Other information may be necessary depending on the type of source you’re dealing with. For example, if you’re citing a web page, you may need to include the URL.

Here’s what a reference entry should look like for a book:

Author, A. A. (Year of publication). Title of work: Capital letter also for subtitle . Publisher Name. DOI (Digital Object Identifier) if available.

Book example:

• Bagshot, B. (1947). A history of magic. Little Red Books.

Here’s what a reference entry should look like for a web page:

Last name, F. M. (Year, Month date). Title of page . Site name. URL

Web page example:

• Stetka, B. (2014, September 9). Why everyone should read Harry Potter , Scientific American. https://www.scientificamerican.com/article/why-everyone-should-read-harry-potter/

How Do You Format an APA Reference Entry?

For the title, you should capitalize only the first letter of the first word of the title and subtitle, the first word after a colon or a dash in the title, and proper nouns. For example, you would say A history of magic , not A History of Magic.

Italicize titles of longer works (e.g. books, edited collections, names of newspapers, and so on).

Authors’ first and middle names should be written as initials. For example, the reference entry for a source written by Albus Percival Wulfric Brian Dumbledore would be written as "Dumbledore, A. P. W. B."

All lines after the first line of each entry in your reference list should be indented one-half inch from the left margin. This is called hanging indentation.

What If There Are Multiple Authors?

If there are multiple authors, you should list the last name and first/middle initials for all of them. Separate each author’s initials from the next author in the list with a comma, and use an ampersand before the final author’s name.

What Happens If You Don’t Know All the Information You Need?

If you don’t know all the information you need, don’t worry—you can still meet APA standards.

If the author is unknown, you can start the reference entry with the title, like this: Title. (Date). Source.

Example of a missing author:

• A history of magic. (1947). Little Red Books.

If the date is missing, you can write “n.d.” for “no date", like this: Author. (n.d.). Title . Source.

Example of a missing date:

• Bagshot, B. (n.d.). A history of magic. Little Red Books.

If the title is missing, you can describe the source you’re citing in square brackets, like this: Author. (Date). [Description.] Source.

Example of a missing title:

• Bagshot, B. (1947). [Textbook about the history of magic.] Little Red Books.

Are There Easy Ways to Generate APA Reference Entries?

Many online generators can be useful, especially if you’re citing a lot of sources.

Scribbr has an APA Citation Generator. You can just plug in the information, and it will generate the reference entry for you.

You can also use an editing software like ProWritingAid to make sure your capitalization and punctuation is consistent throughout your document.

How Do You Format Your APA Reference Page?

Your reference page should be double-spaced and in a legible font, such as Times New Roman 12pt, just like the rest of the paper.

On the first line of the page, write “References” as the title of the section. Make this word bold and center it on the page.

On the second line, list your reference entries in alphabetical order. Make sure they have hanging indentation, which means that the first line of each reference entry is aligned flush with the left margin, and each subsequent line has a hanging indent of 0.5 inches.

Reference list entries should be alphabetized by the last name of the first author of each work.

The APA title page is the first page of your paper. On this page, you give all the key information about what your paper is for.

Let’s take a look at what the APA title page is for and how to format it correctly.

What’s the Purpose of the APA Title Page?

The title page ensures that all key information about your paper is presented upfront. With just a glance at the first page, a reader can easily figure out who wrote this paper, when it was written, and what it was written for.

What Are the Parts of an APA Title Page?

Every title page should contain the title of the paper, the author’s name, and the institutional affiliation.

Some components of the title page depend on whether you’re a student turning in a paper for a class or a professional turning in a paper to a journal.

A student paper should include the course number and name, instructor name, and assignment due date.

A professional paper should include the author note, which includes acknowledgments, disclosures, and the author’s contact information.

How Do You Format an APA Title Page?

The title should be centered with bold formatting applied, in the upper half of the page.

Beneath the title, type the author’s name: first name, middle initial, and last name. Don’t include any titles or degrees.

Beneath the author’s name, type the institutional affiliation—the location where the author conducted the research.

All text on the title page should be double-spaced, just like the rest of the paper.

Here’s an example of a student’s title page:

How to Transform a Needle into a Matchstick Hermione Granger Hogwarts School of Witchcraft and Wizardry TRAN 101, First-Year Transfiguration Dr. Minerva McGonagall November 2, 1998

Here’s an example of a professional’s title page:

How to Transform a Needle into a Matchstick Minerva McGonagall and Albus Dumbledore Hogwarts School of Witchcraft and Wizardry Author Note We have no conflicts of interest to disclose. Correspondence concerning this article should be addressed to Minerva McGonagall, 150 Hogwarts Drive.

MLA and APA are two sets of guidelines for formatting papers and citing research.

MLA stands for the Modern Language Association. The MLA handbook is most often used in fields related to the humanities, such as literature, history, and philosophy. Check out our full guide to MLA formatting .

APA stands for the American Psychological Association. The APA manual is most often used in fields related to the social sciences, such as psychology, sociology, and nursing.

If you have questions about how to format a specific assignment or paper, it’s always best to consult your instructor or advisor first. If you’re a student, your school may also have a writing center that can help you with formatting questions.

Purdue’s website has fantastic resources for learning more about APA Style.

If you would like to find out more directly from the American Psychological Association, you can consult the Publication Manual of the American Psychological Association, 7th ed.

Now you’re ready to write an APA paper.

Do you have any other questions about APA Style? Let us know in the comments.

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Hannah Yang is a speculative fiction writer who writes about all things strange and surreal. Her work has appeared in Analog Science Fiction, Apex Magazine, The Dark, and elsewhere, and two of her stories have been finalists for the Locus Award. Her favorite hobbies include watercolor painting, playing guitar, and rock climbing. You can follow her work on hannahyang.com, or subscribe to her newsletter for publication updates.

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Citing sources: Overview

• Citation style guides

Manage your references

Use these tools to help you organize and cite your references:

• Citation Management and Writing Tools

If you have questions after consulting this guide about how to cite, please contact your advisor/professor or the writing and communication center .

Why citing is important

It's important to cite sources you used in your research for several reasons:

• To show your reader you've done proper research by listing sources you used to get your information
• To be a responsible scholar by giving credit to other researchers and acknowledging their ideas
• To avoid plagiarism by quoting words and ideas used by other authors
• To allow your reader to track down the sources you used by citing them accurately in your paper by way of footnotes, a bibliography or reference list

About citations

Citing a source means that you show, within the body of your text, that you took words, ideas, figures, images, etc. from another place.

Citations are a short way to uniquely identify a published work (e.g. book, article, chapter, web site).  They are found in bibliographies and reference lists and are also collected in article and book databases.

Citations consist of standard elements, and contain all the information necessary to identify and track down publications, including:

• author name(s)
• titles of books, articles, and journals
• date of publication
• page numbers
• volume and issue numbers (for articles)

Citations may look different, depending on what is being cited and which style was used to create them. Choose an appropriate style guide for your needs.  Here is an example of an article citation using four different citation styles.  Notice the common elements as mentioned above:

Author - R. Langer

Article Title - New Methods of Drug Delivery

Source Title - Science

Volume and issue - Vol 249, issue 4976

Publication Date - 1990

Page numbers - 1527-1533

American Chemical Society (ACS) style:

Langer, R. New Methods of Drug Delivery. Science 1990 , 249 , 1527-1533.

IEEE Style:

R. Langer, " New Methods of Drug Delivery," Science , vol. 249 , pp. 1527-1533 , SEP 28, 1990 .

American Psychological Association   (APA) style:

Langer, R. (1990) . New methods of drug delivery. Science , 249 (4976), 1527-1533.

Modern Language Association (MLA) style:

Langer, R. " New Methods of Drug Delivery." Science 249.4976 (1990) : 1527-33.

What to cite

You must cite:

• Facts, figures, ideas, or other information that is not common knowledge

Publications that must be cited include:  books, book chapters, articles, web pages, theses, etc.

Another person's exact words should be quoted and cited to show proper credit 

When in doubt, be safe and cite your source!

Avoiding plagiarism

Plagiarism occurs when you borrow another's words (or ideas) and do not acknowledge that you have done so. In this culture, we consider our words and ideas intellectual property; like a car or any other possession, we believe our words belong to us and cannot be used without our permission.

Plagiarism is a very serious offense. If it is found that you have plagiarized -- deliberately or inadvertently -- you may face serious consequences. In some instances, plagiarism has meant that students have had to leave the institutions where they were studying.

The best way to avoid plagiarism is to cite your sources - both within the body of your paper and in a bibliography of sources you used at the end of your paper.

Some useful links about plagiarism:

• MIT Academic Integrity Overview on citing sources and avoiding plagiarism at MIT.
• Avoiding Plagiarism From the MIT Writing and Communication Center.
• Plagiarism: What It is and How to Recognize and Avoid It From Indiana University's Writing Tutorial Services.
• Plagiarism- Overview A resource from Purdue University.
• Next: Citation style guides >>
• Last Updated: Jan 16, 2024 7:02 AM
• URL: https://libguides.mit.edu/citing

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• Knowledge Base
• Referencing

A Quick Guide to Harvard Referencing | Citation Examples

Published on 14 February 2020 by Jack Caulfield . Revised on 15 September 2023.

Referencing is an important part of academic writing. It tells your readers what sources you’ve used and how to find them.

Harvard is the most common referencing style used in UK universities. In Harvard style, the author and year are cited in-text, and full details of the source are given in a reference list .

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Table of contents

Harvard in-text citation, creating a harvard reference list, harvard referencing examples, referencing sources with no author or date, frequently asked questions about harvard referencing.

A Harvard in-text citation appears in brackets beside any quotation or paraphrase of a source. It gives the last name of the author(s) and the year of publication, as well as a page number or range locating the passage referenced, if applicable:

Note that ‘p.’ is used for a single page, ‘pp.’ for multiple pages (e.g. ‘pp. 1–5’).

An in-text citation usually appears immediately after the quotation or paraphrase in question. It may also appear at the end of the relevant sentence, as long as it’s clear what it refers to.

When your sentence already mentions the name of the author, it should not be repeated in the citation:

Sources with multiple authors

When you cite a source with up to three authors, cite all authors’ names. For four or more authors, list only the first name, followed by ‘ et al. ’:

Sources with no page numbers

Some sources, such as websites , often don’t have page numbers. If the source is a short text, you can simply leave out the page number. With longer sources, you can use an alternate locator such as a subheading or paragraph number if you need to specify where to find the quote:

Multiple citations at the same point

When you need multiple citations to appear at the same point in your text – for example, when you refer to several sources with one phrase – you can present them in the same set of brackets, separated by semicolons. List them in order of publication date:

Multiple sources with the same author and date

If you cite multiple sources by the same author which were published in the same year, it’s important to distinguish between them in your citations. To do this, insert an ‘a’ after the year in the first one you reference, a ‘b’ in the second, and so on:

Prevent plagiarism, run a free check.

A bibliography or reference list appears at the end of your text. It lists all your sources in alphabetical order by the author’s last name, giving complete information so that the reader can look them up if necessary.

The reference entry starts with the author’s last name followed by initial(s). Only the first word of the title is capitalised (as well as any proper nouns).

Sources with multiple authors in the reference list

As with in-text citations, up to three authors should be listed; when there are four or more, list only the first author followed by ‘ et al. ’:

Reference list entries vary according to source type, since different information is relevant for different sources. Formats and examples for the most commonly used source types are given below.

• Entire book
• Book chapter
• Translated book
• Edition of a book

Journal articles

• Print journal
• Online-only journal with DOI
• Online-only journal with no DOI
• General web page
• Online article or blog
• Social media post

Sometimes you won’t have all the information you need for a reference. This section covers what to do when a source lacks a publication date or named author.

No publication date

When a source doesn’t have a clear publication date – for example, a constantly updated reference source like Wikipedia or an obscure historical document which can’t be accurately dated – you can replace it with the words ‘no date’:

Note that when you do this with an online source, you should still include an access date, as in the example.

When a source lacks a clearly identified author, there’s often an appropriate corporate source – the organisation responsible for the source – whom you can credit as author instead, as in the Google and Wikipedia examples above.

When that’s not the case, you can just replace it with the title of the source in both the in-text citation and the reference list:

Harvard referencing uses an author–date system. Sources are cited by the author’s last name and the publication year in brackets. Each Harvard in-text citation corresponds to an entry in the alphabetised reference list at the end of the paper.

Vancouver referencing uses a numerical system. Sources are cited by a number in parentheses or superscript. Each number corresponds to a full reference at the end of the paper.

A Harvard in-text citation should appear in brackets every time you quote, paraphrase, or refer to information from a source.

The citation can appear immediately after the quotation or paraphrase, or at the end of the sentence. If you’re quoting, place the citation outside of the quotation marks but before any other punctuation like a comma or full stop.

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

Though the terms are sometimes used interchangeably, there is a difference in meaning:

• A reference list only includes sources cited in the text – every entry corresponds to an in-text citation .
• A bibliography also includes other sources which were consulted during the research but not cited.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2023, September 15). A Quick Guide to Harvard Referencing | Citation Examples. Scribbr. Retrieved 9 April 2024, from https://www.scribbr.co.uk/referencing/harvard-style/

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How to Write a Research Paper: Citing Sources

• Anatomy of a Research Paper
• Developing a Research Focus
• Background Research Tips
• Searching Tips
• Scholarly Journals vs. Popular Journals
• Thesis Statement
• Annotated Bibliography
• Citing Sources
• Evaluating Sources
• Literature Review
• Academic Integrity
• Scholarship as Conversation
• Understanding Fake News
• Data, Information, Knowledge

Style Guides

Choosing a style.

C hoosing A Style

There are different ways to properly cite resources in your paper. The citation style usually depends on the academic discipline involved. For example:

MLA style (Modern Language Association) is typically used by the Humanities 

APA style (American Psychological Association) often is used by Education, Psychology, and Business

• Chicago  (Professor Turabian, University of Chicago) is generally used by History and some of the Fine Arts.

When determining which style to use there are several resources to keep in mind:

Ask your professor which style they prefer for the course.

Consult a style guide for examples of using various citation styles to create in-text citations, bibliographies and reference lists, or use citation software to assist you in tracking sources used and building in-text citations and bibliographies. 

Bottom line: Check with your professor to make sure you use the style required for that class. And whatever style you choose,  BE CONSISTENT!

UMary Writing Center

Check out the resources available from the  Writing Center . 

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University Library

Start your research.

• Research Process
• Find Background Info
• Find Sources through the Library
• Evaluate Your Info
• Cite Your Sources
• Evaluate, Write & Cite

• is the right thing to do  to give credit to those who had the idea
• shows that you have read and understand  what experts have had to say about your topic
• helps people find the sources  that you used in case they want to read more about the topic
• provides   evidence  for your arguments
• is professional and  standard practice   for students and scholars

What is a Citation?

A citation identifies for the reader the original source for an idea, information, or image that is referred to in a work.

• In the body of a paper, the  in-text citation  acknowledges the source of information used.
• At the end of a paper, the citations are compiled on a  References  or  Works Cited  list. A basic citation includes the author, title, and publication information of the source. 

From:  Lemieux  Library,  University  of Seattle 

Why Should You Cite?

Quoting Are you quoting two or more consecutive words from a source? Then the original source should be cited and the words or phrase placed in quotes. 

Paraphrasing If an idea or information comes from another source,  even if you put it in your own words , you still need to credit the source.  General vs. Unfamiliar Knowledge You do not need to cite material which is accepted common knowledge. If in doubt whether your information is common knowledge or not, cite it. Formats We usually think of books and articles. However, if you use material from web sites, films, music, graphs, tables, etc. you'll also need to cite these as well.

Plagiarism is presenting the words or ideas of someone else as your own without proper acknowledgment of the source. When you work on a research paper and use supporting material from works by others, it's okay to quote people and use their ideas, but you do need to correctly credit them. Even when you summarize or paraphrase information found in books, articles, or Web pages, you must acknowledge the original author.

Citation Style Help

Helpful links:

• MLA ,  Works Cited : A Quick Guide (a template of core elements)
• CSE  (Council of Science Editors)

For additional writing resources specific to styles listed here visit the  Purdue OWL Writing Lab

Citation and Bibliography Resources

• How to Write an Annotated Bibliography
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Land Acknowledgement

The land on which we gather is the unceded territory of the Awaswas-speaking Uypi Tribe. The Amah Mutsun Tribal Band, comprised of the descendants of indigenous people taken to missions Santa Cruz and San Juan Bautista during Spanish colonization of the Central Coast, is today working hard to restore traditional stewardship practices on these lands and heal from historical trauma.

The land acknowledgement used at UC Santa Cruz was developed in partnership with the Amah Mutsun Tribal Band Chairman and the Amah Mutsun Relearning Program at the UCSC Arboretum .

• USC Libraries
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Organizing Your Social Sciences Research Paper

• 11. Citing Sources
• Purpose of Guide
• Design Flaws to Avoid
• Independent and Dependent Variables
• Glossary of Research Terms
• Reading Research Effectively
• Narrowing a Topic Idea
• Broadening a Topic Idea
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A citation is a formal reference to a published or unpublished source that you consulted and obtained information from while writing your research paper. It refers to a source of information that supports a factual statement, proposition, argument, or assertion or any quoted text obtained from a book, article, web site, or any other type of material . In-text citations are embedded within the body of your paper and use a shorthand notation style that refers to a complete description of the item at the end of the paper. Materials cited at the end of a paper may be listed under the heading References, Sources, Works Cited, or Bibliography. Rules on how to properly cite a source depends on the writing style manual your professor wants you to use for the class [e.g., APA, MLA, Chicago, Turabian, etc.]. Note that some disciplines have their own citation rules [e.g., law].

Citations: Overview. OASIS Writing Center, Walden University; Research and Citation. The Writing Lab and The OWL. Purdue University; Citing Sources. University Writing Center, Texas A&M University.

Reasons for Citing Your Sources

Reasons for Citing Sources in Your Research Paper

English scientist, Sir Isaac Newton, once wrote, "If I have seen further, it is by standing on the shoulders of giants.”* Citations support learning how to "see further" through processes of intellectual discovery, critical thinking, and applying a deliberate method of navigating through the scholarly landscape by tracking how cited works are propagated by scholars over time and the subsequent ways this leads to the devarication of new knowledge.

Listed below are specific reasons why citing sources is an important part of doing good research.

• Shows the reader where to find more information . Citations help readers expand their understanding and knowledge about the issues being investigated. One of the most effective strategies for locating authoritative, relevant sources about a research problem is to review materials cited in studies published by other authors. In this way, the sources you cite help the reader identify where to go to examine the topic in more depth and detail.
• Increases your credibility as an author . Citations to the words, ideas, and arguments of scholars demonstrates that you have conducted a thorough review of the literature and, therefore, you are reporting your research results or proposing recommended courses of action from an informed and critically engaged perspective. Your citations offer evidence that you effectively contemplated, evaluated, and synthesized sources of information in relation to your conceptualization of the research problem.
• Illustrates the non-linear and contested nature of knowledge creation . The sources you cite show the reader how you characterized the dynamics of prior knowledge creation relevant to the research problem and how you managed to effectively identify the contested relationships between problems and solutions proposed among scholars. Citations don't just list materials used in your study, they tell a story about how prior knowledge-making emerged from a constant state of creation, renewal, and transformation.
• Reinforces your arguments . Sources cited in your paper provide the evidence that readers need to determine that you properly addressed the “So What?” question. This refers to whether you considered the relevance and significance of the research problem, its implications applied to creating new knowledge, and its importance for improving practice. In this way, citations draw attention to and support the legitimacy and originality of your own ideas.
• Demonstrates that you "listened" to relevant conversations among scholars before joining in . Your citations tell the reader where you developed an understanding of the debates among scholars. They show how you educated yourself about ongoing conversations taking place within relevant communities of researchers before inserting your own ideas and arguments. In peer-reviewed scholarship, most of these conversations emerge within books, research reports, journal articles, and other cited works.
• Delineates alternative approaches to explaining the research problem . If you disagree with prior research assumptions or you believe that a topic has been understudied or you find that there is a gap in how scholars have understood a problem, your citations serve as the source materials from which to analyze and present an alternative viewpoint or to assert that a different course of action should be pursued. In short, the materials you cite serve as the means by which to argue persuasively against long-standing assumptions propagated in prior studies.
• Helps the reader understand contextual aspects of your research . Cited sources help readers understand the specific circumstances, conditions, and settings of the problem being investigated and, by extension, how your arguments can be fully understood and assessed. Citations place your line of reasoning within a specific contextualized framework based on how others have studied the problem and how you interpreted their findings in support of your overall research objectives.
• Frames the development of concepts and ideas within the literature . No topic in the social and behavioral sciences rests in isolation from research that has taken place in the past. Your citations help the reader understand the growth and transformation of the theoretical assumptions, key concepts, and systematic inquiries that emerged prior to your engagement with the research problem.
• Underscores what sources were most important to you . Your citations represent a set of choices made about what you determined to be the most important sources for understanding the topic. They not only list what you discovered, but why it matters and how the materials you chose to cite fit within the broader context of your research design and arguments. As part of an overall assessment of the study’s validity and reliability , the choices you make also helps the reader determine what research may have been excluded.
• Provides evidence of interdisciplinary thinking . An important principle of good research is to extend your review of the literature beyond the predominant disciplinary space where scholars have examined a topic. Citations provide evidence that you have integrated epistemological arguments, observations, and/or the methodological strategies from other disciplines into your paper, thereby demonstrating that you understand the complex, interconnected nature of contemporary research problems.
• Supports critical thinking and independent learning . Evaluating the authenticity, reliability, validity, and originality of prior research is an act of interpretation and introspective reasoning applied to assessing whether a source of information will contribute to understanding the problem in ways that are persuasive and align with your overall research objectives. Reviewing and citing prior studies represents a deliberate act of critically scrutinizing each source as part of your overall assessment of how scholars have confronted the research problem.
• Honors the achievements of others . As Susan Blum recently noted,** citations not only identify sources used, they acknowledge the achievements of scholars within the larger network of research about the topic. Citing sources is a normative act of professionalism within academe and a way to highlight and recognize the work of scholars who likely do not obtain any tangible benefits or monetary value from their research endeavors.

*Vernon. Jamie L. "On the Shoulder of Giants." American Scientist 105 (July-August 2017): 194.

**Blum, Susan D. "In Defense of the Morality of Citation.” Inside Higher Ed , January 29, 2024.

Aksnes, Dag W., Liv Langfeldt, and Paul Wouters. "Citations, Citation Indicators, and Research Quality: An Overview of Basic Concepts and Theories." Sage Open 9 (January-March 2019): https://doi.org/10.1177/2158244019829575; Blum, Susan Debra. My Word!: Plagiarism and College Culture . Ithaca, NY: Cornell University Press, 2009; Bretag, Tracey., editor. Handbook of Academic Integrity . Singapore: Springer Singapore, 2020; Ballenger, Bruce P. The Curious Researcher: A Guide to Writing Research Papers . 7th edition. Boston, MA: Pearson, 2012; D'Angelo, Barbara J. "Using Source Analysis to Promote Critical Thinking." Research Strategies 18 (Winter 2001): 303-309; Mauer, Barry and John Venecek. “Scholarship as Conversation.” Strategies for Conducting Literary Research, University of Central Florida, 2021; Why Cite? Poorvu Center for Teaching and Learning, Yale University; Citing Information. The Writing Center. University of North Carolina; Harvard Guide to Using Sources. Harvard College Writing Program. Harvard University; Newton, Philip. "Academic Integrity: A Quantitative Study of Confidence and Understanding in Students at the Start of Their Higher Education."  Assessment and Evaluation in Higher Education 41 (2016): 482-497; Referencing More Effectively. Academic Skills Centre. University of Canberra; Using Sources. Yale College Writing Center. Yale University; Vosburgh, Richard M. "Closing the Academic-practitioner Gap: Research Must Answer the “SO WHAT” Question." H uman Resource Management Review 32 (March 2022): 100633; When and Why to Cite Sources. Information Literacy Playlists, SUNY, Albany Libraries.

Structure and Writing Style

Referencing your sources means systematically showing what information or ideas you acquired from another author’s work, and identifying where that information come from . You must cite research in order to do research, but at the same time, you must delineate what are your original thoughts and ideas and what are the thoughts and ideas of others. Citations help achieve this. Procedures used to cite sources vary among different fields of study. If not outlined in your course syllabus or writing assignment, always speak with your professor about what writing style for citing sources should be used for the class because it is important to fully understand the citation style to be used in your paper, and to apply it consistently. If your professor defers and tells you to "choose whatever you want, just be consistent," then choose the citation style you are most familiar with or that is appropriate to your major [e.g., use Chicago style if its a history class; use APA if its an education course; use MLA if it is literature or a general writing course].

GENERAL GUIDELINES

1. Are there any reasons I should avoid referencing other people's work? No. If placed in the proper context, r eferencing other people's research is never an indication that your work is substandard or lacks originality. In fact, the opposite is true. If you write your paper without adequate references to previous studies, you are signaling to the reader that you are not familiar with the literature on the topic, thereby, undermining the validity of your study and your credibility as a researcher. Including references in academic writing is one of the most important ways to demonstrate your knowledge and understanding of how the research problem has been addressed. It is the intellectual packaging around which you present your thoughts and ideas to the reader.

2. What should I do if I find out that my great idea has already been studied by another researcher? It can be frustrating to come up with what you believe is a great topic only to find that it's already been thoroughly studied. However, do not become frustrated by this. You can acknowledge the prior research by writing in the text of your paper [see also Smith, 2002], then citing the complete source in your list of references. Use the discovery of prior studies as an opportunity to demonstrate the significance of the problem being investigated and, if applicable, as a means of delineating your analysis from those of others [e.g., the prior study is ten years old and doesn't take into account new variables]. Strategies for responding to prior research can include: stating how your study updates previous understandings about the topic, offering a new or different perspective, applying a different or innovative method of data gathering, and/or describing a new set of insights, guidelines, recommendations, best practices, or working solutions.

3. What should I do if I want to use an adapted version of someone else's work? You still must cite the original work. For example, maybe you are using a table of statistics from a journal article published in 1996 by author Smith, but you have altered or added new data to it. Reference the revised chart, such as, [adapted from Smith, 1996], then cite the complete source in your list of references. You can also use other terms in order to specify the exact relationship between the original source and the version you have presented, such as, "based on data from Smith [1996]...," or "summarized from Smith [1996]...." Citing the original source helps the reader locate where the information was first presented and under what context it was used as well as to evaluate how effectively you applied it to your own research.

4. What should I do if several authors have published very similar information or ideas? You can indicate that the idea or information can be found in the works of others by stating something similar to the following example: "Though many scholars have applied rational choice theory to understanding economic relations among nations [Smith, 1989; Jones, 1991; Johnson, 1994; Anderson, 2003], little attention has been given to applying the theory to examining the influence of non-governmental organizations in a globalized economy." If you only reference one author or only the most recent study, then your readers may assume that only one author has published on this topic, or more likely, they will conclude that you have not conducted a thorough literature review. Referencing all relevant authors of prior studies gives your readers a clear idea of the breadth of analysis you conducted in preparing to study the research problem. If there has been a significant number of prior studies on the topic, describe the most comprehensive and recent works because they will presumably discuss and reference the older studies. However, note in your review of the literature that there has been significant scholarship devoted to the topic so the reader knows that you are aware of the numerous prior studies.

5. What if I find exactly what I want to say in the writing of another researcher? In the social sciences, the rationale in duplicating prior research is generally governed by the passage of time, changing circumstances or conditions, or the emergence of variables that necessitate a new investigation . If someone else has recently conducted a thorough investigation of precisely the same research problem that you intend to study, then you likely will have to revise your topic, or at the very least, review this literature to identify something new to say about the problem. However, if it is someone else's particularly succinct expression, but it fits perfectly with what you are trying to say, then you can quote from the author directly, referencing the source. Identifying an author who has made the exact same point that you want to make can be an opportunity to add legitimacy to, as well as reinforce the significance of, the research problem you are investigating. The key is to build on that idea in new and innovative ways. If you are not sure how to do this, consult with a librarian .

6. Should I cite a source even if it was published long ago? Any source used in writing your paper should be cited, regardless of when it was written. However, in building a case for understanding prior research about your topic, it is generally true that you should focus on citing more recently published studies because they presumably have built upon the research of older studies. When referencing prior studies, use the research problem as your guide when considering what to cite. If a study from forty years ago investigated the same topic, it probably should be examined and considered in your list of references because the research may have been foundational or groundbreaking at the time, even if its findings are no longer relevant to current conditions or reflect current thinking [one way to determine if a study is foundational or groundbreaking is to examine how often it has been cited in recent studies using the "Cited by" feature of Google Scholar ]. However, if an older study only relates to the research problem tangentially or it has not been cited in recent studies, then it may be more appropriate to list it under further readings .

NOTE:   In any academic writing, you are required to identify which ideas, facts, thoughts, concepts, or declarative statements are yours and which are derived from the research of others. The only exception to this rule is information that is considered to be a commonly known fact [e.g., "George Washington was the first president of the United States"] or a statement that is self-evident [e.g., "Australia is a country in the Global South"]. Appreciate, however, that any "commonly known fact" is culturally constructed and shaped by social and aesthetical biases . If you are in doubt about whether or not a fact is considered to be widely understood knowledge, provide a supporting citation, or, ask your professor for clarification about how the statement should be cited.

Ballenger, Bruce P. The Curious Researcher: A Guide to Writing Research Papers . 7th edition. Boston, MA: Pearson, 2012; Blum, Susan Debra. My Word!: Plagiarism and College Culture . Ithaca, NY: Cornell University Press, 2009; Bretag, Tracey., editor. Handbook of Academic Integrity . Singapore: Springer Singapore, 2020; Carlock, Janine. Developing Information Literacy Skills: A Guide to Finding, Evaluating, and Citing Sources . Ann Arbor, MI: University of Michigan Press, 2020; Harvard Guide to Using Sources. Harvard College Writing Program. Harvard University; How to Cite Other Sources in Your Paper. The Structure, Format, Content, and Style of a Journal-Style Scientific Paper. Department of Biology. Bates College; Lunsford, Andrea A. and Robert Connors; The St. Martin's Handbook . New York: St. Martin's Press, 1989; Mills, Elizabeth Shown. Evidence Explained: Citing History Sources from Artifacts to Cyberspace . 3rd edition. Baltimore, MD: Genealogical Publishing Company, 2015; Research and Citation Resources. The Writing Lab and The OWL. Purdue University; Writing Tutorial Services, Center for Innovative Teaching and Learning. Indiana University; Why Cite? Poorvu Center for Teaching and Learning, Yale Univeraity.

Other Citation Research Guides

The following USC Libraries research guide can help you properly cite sources in your research paper:

• Citation Guide

The following USC Libraries research guide offers basic information on using images and media in research:

Listed below are particularly well-done and comprehensive websites that provide specific examples of how to cite sources under different style guidelines.

• Purdue University Online Writing Lab
• Southern Cross University Harvard Referencing Style
• University of Wisconsin Writing Center

This is a useful guide concerning how to properly cite images in your research paper.

• Colgate Visual Resources Library, Citing Images

This guide provides good information on the act of citation analysis, whereby you count the number of times a published work is cited by other works in order to measure the impact of a publication or author.

Measuring Your Impact: Impact Factor, Citation Analysis, and other Metrics: Citation Analysis [Sandy De Groote, University of Illinois, Chicago]

Automatic Citation Generators

The links below lead to systems where you can type in your information and have a citation compiled for you. Note that these systems are not foolproof so it is important that you verify that the citation is correct and check your spelling, capitalization, etc. However, they can be useful in creating basic types of citations, particularly for online sources.

• BibMe -- APA, MLA, Chicago, and Turabian styles
• DocsCite -- for citing government publications in APA or MLA formats
• EasyBib -- APA, MLA, and Chicago styles
• Son of Citation Machine -- APA, MLA, Chicago, and Turabian styles

NOTE:   Many companies that create the research databases the USC Libraries subscribe to, such as ProQuest , include built-in citation generators that help take the guesswork out of how to properly cite a work. When available, you should always utilize these features because they not only generate a citation to the source [e.g., a journal article], but include information about where you accessed the source [e.g., the database].

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APA 7th Edition Guide

In-text citations.

• APA Paper Basics
• Preventing Plagiarism
• Academic Integrity Video
• Setting Up Your Paper
• eTextbooks and Course Materials
• Images & Audiovisual Media
• Legal Resources
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• Finding Help
• Additional Resources from the APA
• Creating In-Text Citations

Formatting In-Text Citations

• Placing In-Text Citations in a Paper
• Quotations & Block Quotations
• Paraphrases & Summaries

Why Cite Resources?

Citing sources in the body of a research paper tells the reader that outside source material was used in the sentence where the in-text citation appears.  This lets the reader know it is not their original work or thought. Citing sources:

• Lets the reader know whose research or ideas or theories influenced the paper's author
• Provides authority and support for the positions taken in the paper
• Acknowledges others in the field by giving credit for their original work

In-text citations also serve as finding tools. Because in-text citations are composed of the first two elements of the reference for the resource (author's last name and publication date), it provides the reader with enough information to find the resource in the paper’s References list. In other words, in-text citations and references match!

What Needs to be Cited?

According to the Publication Manual of the American Psychological Association (7th ed.),

" Plagiarism is the act of presenting the words, ideas, or images of another as one's own; it denies authors credit where credit is due" (American Psychological Association, 2020, p. 21).

In other words, using information from source material must be cited in the text and in the Reference list of APA-style papers.  This includes using others:

• Words  - Quotations
• Ideas  - Summaries, Paraphrases
• Data  - Numbers, Data
• Images   - Pictures, Charts, Graphs

View examples of references and companion in-text citations in the References page s in the APA Guide.

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000

Creating In-Text Citations: Paraphrases and Summaries

(Author, Date)       

APA style uses the Author-Date citation system. In-text citations appear in the text of the paper to let readers know that information in the sentence where the in-text citation appears was taken from source material. They are composed of the first two elements of the corresponding reference (Author, Date)  for the resource and are designed to be short to avoid disrupting the flow of the paper.

There are two types of in-text citation:

• Parenthetical

Parenthetical In-Text Citation

This is the most common form of in-text citation.  It is composed of the author(s) last name and the year of publication. It is called a parenthetical citation because this information is enclosed in parentheses. The parenthetical citation appears at the end of the sentence where information from the source was used and, because it is a part of the sentence, appears before the period. See the example of a parenthetical citation below:

Students reported they prefer writing on a computer rather than with paper and pen  (Cheung, 2016) .

Narrative In-Text Citation

The narrative citation is used when the author's name is used in a sentence. In this case, the year of publication enclosed in parentheses follows the author's name in the sentence. See the example of a narrative citation below:

In his survey, Cheung  (2016)  found that undergraduate writers produced higher quality writing when composing on a computer rather than with paper and pen.

In-Text Citations and References are Connected and Match!

In-text citations have two functions. First, they alert the reader that information from source material was used in a sentence where the in-text citation appears. It lets the reader know who's work influenced the writer's position or conclusions on the topic. Second, it serves as a finding tool so that the reader can quickly find the full reference in the reference list. The reference and in-text citation need to match. The example below illustrates how these match:

In-text citations follow the Author-Date pattern. In-text citations can appear at the end of a sentence (parenthetical in-text citation) or in the text of the sentence if the author's name is incorporated (narrative in-text citation). If a work is by three or more authors, list the first author's last name followed by the phrase "et al." and the year of publication.

Examples of in-text citations for works by one author, two authors, three or more authors, and group authors appear below:

Work by One Author

    Parenthetical in-text citation              (Davis, 2019).

    Narrative in-text citation                     According to Davis (2019),...

Work by Two Authors

    Parenthetical in-text citation              (Ryan & Cooper, 2020).

    Narrative in-text citation                     In the study conducted by Ryan and Cooper (2020),...

Work by Three or More Authors

   Parenthetical in-text citation              (Morrison et al., 2018).

    Narrative in-text citation                     In the Morrison et al. (2018) study,...

Work by Group Author

    Parenthetical in-text citation

• First citation                                 (American Nurses Association [ANA], 2019).
• Subsequent citation                     (ANA, 2019).

   Narrative in-text citation

• First citation                                  The Centers for Disease Control and Prevention (CDC, 2020) report...
• Subsequent citation                     According to the CDC (2020), recommendations include...                      

Placing In-Text Citations

In-text citations follow the Author-Date pattern and appear in the sentence where information from source material is used.  Placement of in-text citations vary depending on whether the author(s) name is incorporated into the sentence (narrative citation) or if the author(s) is not named directly in the sentence (parenthetical citation). In-text citations are a part of the sentence and appear before the ending period.

Parenthetical Citations

A parenthetical citation appears when information from source material is used, but the author(s) name is not included in the sentence text. This type of in-text citation is composed of the author(s) last name comma year of publication enclosed in parentheses. It is placed at the end of the sentence before the ending period.  

Narrative Citations

A narrative citation is used when the author(s) name is included in the sentence text. In this case, the year of publication is enclosed in parentheses and appears after the author(s) name.

In his survey,  Cheung  (2016)   found that undergraduate writers produced higher quality writing when composing on a computer rather than with paper and pen.

Creating In-Text Citations: Quotations

Author-Date-#   pattern:

When you copy a portion of the text directly from a source, it is called a  direct quotation . You will enclose the quote in quotation marks, and your citation will contain the last name of the author(s), the year of publication, and page number of where the quote can be found in the source:

If you are using a source that has  pages , then you will use an abbreviated p.:

(Smith, 2018, p. 4).

If you are using a source that does not have pages (a website), then you will use a  paragraph number . You will count down to the paragraph where your quote is located. You will use an abbreviated para.: 

(Wilson & Miller, 2019, para. 2).

Parenthetical In-Text Citation:

If the author’s name is not incorporated in your sentence include the author’s last name, year of publication, and page or paragraph number separated with commas and enclosed in parentheses at the end of the quotation: 

Many writers appreciate the “ability to edit instantaneously”  (Smith, 2008, p. 72)  when writing in pencil or on a computer.

If you incorporate the author’s name into your sentence follow the author's name with the year of publication in parentheses and include the location in parentheses directly following the quote:

In his survey,  Miller (2006)  found that some writers like the sound “of graphite turning ideas into reality”  (p. 72)  when writing in pencil. 

Quotations of 40 or More Words Require Block Format

Quotations of 40 or more words included in a paper are presented in block format. The quotation begins on a new line and the whole quotation is indented 1/2 inch from the left margin. No quotation marks are used and the citation appears at the end of the quotation after the final punctuation mark. In fact, this is the only situation where a parenthetical reference appears outside of a period!

Writing Tip:    Block quotations should be used sparingly.   Remember that your voice is important -- after all it is your paper! Instead of using a block quotation, consider taking pieces of the larger quote and either paraphrase them (put their ideas into your own words and provide an in-text citation) or include precise, shorter quotations from the larger quote, integrated into your own sentences. Either approach will help to ensure that you (the writer) have engaged with information in the quote and directly applied it to the topic of the paper.

Here is an example of a block quotation. Note: Normally the passage would be double spaced but, due to space restrictions, this example is single spaced.

Place direct quotations longer than 40 words in a free-standing block of typewritten lines, and omit quotation marks.  Start the quotation on a new line, indented 1/2 inch from the left margin, i.e., in the same place you would begin a new paragraph.  Type the entire quotation on the new margin, and indent the first line of any subsequent paragraph within the quotation 1/2 inch from the new margin.  Maintain double-spacing throughout.  The parenthetical reference should come after the closing punctuation mark. (Angeli, et al., 2018, para. 27)

To create a block quotation, use the block indent button:

Although paraphrasing information is preferable, there are specific situations when a quotation can be an effective choice.  For example:

• Including a famous or familiar quotation can be effective when introducing a topic or in setting the tone of a paper.
• Providing the words of an expert can bolster your position or argument.
• In rare instances, it may be difficult to paraphrase a short passage without changing the meaning; including a precise quotation may be preferable.
• Sources of facts and statistics--including those presented in tables or charts -- must be documented in your paper using in-text citations and references.
• Including a quotation that opposes your position can be an effective method to prove why your position on the issue is preferable.

Paraphrases and Summaries

Author-Date  pattern:

When you  summarize ,  paraphrase , or otherwise refer to an idea, concept, or fact gained through your research, your citation will contain the last name of the author(s) and the year of publication:

(Smith, 2018)

(Wilson & Miller, 2019)

Qualities of a "Good" Paraphrase

Academic writing often requires students to integrate information found in source material.  There are various ways to do this; quotations, summaries, or paraphrases.  A  paraphrase  is a detailed restatement in your own words of main ideas from the portion of the source that is paraphrased.

Creating a well-written paraphrase can be a challenging skill to learn.  Understanding the qualities of a "good" paraphrase can help. A well-written paraphrase includes the following qualities:

• All of the main details in the original appear in the paraphrase
• The paraphrase does not change the original author's meaning.
• ​The paraphrase is roughly the same length or shorter than the original. 
• ​ The paraphrase is written using language, tone, and style that is your own.
• ​ Paraphrased material must include both an in-text citation and a reference in the References list.

Example of a well-written paraphrase:

Original Passage:

University of Tulsa psychologist Judy Berry studied seventy-three Oklahoma eighth graders who had taken a parenting course.  For ten days, each student had to care for a ten-pound sack of flour as if it were a baby.  Berry's research on her young subjects suggests the course worked.  The teenagers in the study had a sounder sense of parental responsibility than they did before they took the course.

Harper, K. S. (1996). 'Flour babies' surrogacy teaches eight-graders parenting skills.  Journal of Child and Family Studies, 25 (4), 25-28.

Example of a Good Paraphrase:

Extended parental role-playing can actually increase an adolescent's awareness of parental responsibilities as shown by psychologist Judy Berry's study involving eighth grade students (Harper, 1996).

Avoid Patch Writing!

Students learning how to paraphrase may inadvertently "patch write."  Patch writing occurs when a writer uses a passage from source material and changes a few words and phrases before including the passage in a paper or assignment.  Not only is this  "bad" paraphrasing but it is also a form of plagiarism.  View the example below to gain a better understanding of patch writing:

University of Tulsa psychologist Judy Berry studied seventy-three Oklahoma eighth graders who had taken a parenting course.  For ten days, each student had to care for a ten-pound sack of flour as if it were a baby.  Berry's research on her young subjects suggests the course worked.  The teenagers in the study had a sounder sense of parental responsibility than they did before they took the course.

Patchwriting Example:

University of Tulsa psychologist Judy Berry  studied  eighth graders who had taken a parenting course.  Students had to treat  a ten-pound sack of flour as if it were a baby.   The results of Berry's study suggested  that teenagers in the study had a  better understanding  of parental responsibility than they did before they took the course  (Harper, 1996).

TIP:   Notice how the bolded phrases are identical to the original.  Even though there is an in-text citation, patchwriting is still a form of plagiarism.

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How to Cite a Research Paper in APA

Last Updated: October 19, 2022 Fact Checked

This article was co-authored by wikiHow Staff . Our trained team of editors and researchers validate articles for accuracy and comprehensiveness. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. There are 12 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 158,870 times. Learn more...

If you’re citing a research article or paper in APA style, you’ll need to use a specific citation format that varies depending on the source. Assess whether your source is an article or report published in an academic journal or book, or whether it is an unpublished research paper, such as a print-only thesis or dissertation. Either way, your in-text citations will need to include information about the author (if available) and the date when your source was published or written.

Sample Citations

Writing an In-Text Citation

• For example, you may write, “Gardener (2008) notes, ‘There are several factors to consider about lobsters’ (p. 199).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (Meek & Hill, 2015, p.13-14).”
• For articles with 3-5 authors, write out the names of all the authors the first time you cite the source. For example: (Hammett, Wooster, Smith, & Charles, 1928). In subsequent citations, write only the first author’s name, followed by et al.: (Hammett et al., 1928).
• If there are 6 or more authors for the paper, include the last name of the first author listed and then write "et al." to indicate that there are more than 5 authors.
• For example, you may write, "'This is a quote' (Minaj et al., 1997, p. 45)."

• For example, you may write, “‘The risk of cervical cancer in women is rising’ (American Cancer Society, 2012, p. 2).”

• For example, you may write, “‘Shakespeare may have been a woman’ (“Radical English Literature,” 2004, p. 45).” Or, “The paper notes, ‘There is a boom in Virgin Mary imagery’ (“Art History in Italy,” 2011, p. 32).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (“Iconography in Italian Frescos,” 2015, p.13-14).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (“Iconography in Italian Frescos,” 2015, p.145-146).”

• For example, you may write, “‘The effects of food deprivation are long-term’ (Mett, 2005, para. 18).”

Creating a Reference List Citation for a Published Source

• Material on websites is also considered “published,” even if it’s not peer-reviewed or associated with a formal publishing company.
• While academic dissertations or theses that are print-only are considered unpublished, these types of documents are considered published if they’re included in an online database (such as ProQuest) or incorporated into an institutional repository.

• For example, you may write, “Gardner, L. M.” Or, “Meek, P. Q., Kendrick, L. H., & Hill, R. W.”
• If there is no author, you can list the name of the organization that published the research paper. For example, you may write, “American Cancer Society” or “The Reading Room.”
• Formally published documents that don’t list an author or that have a corporate author are typically reports or white papers .

• For example, you may write, “Gardner, L. M. (2008).” Or, “American Cancer Society. (2015).”

• For example, you may write, “Gardner, L. M. (2008). Crustaceans: Research and data.” Or, “American Cancer Society. (2015). Cervical cancer rates in women ages 20-45.”

• For example, for a journal article, you may write, “Gardner, L. M. (2008). Crustaceans: Research and data. Modern Journal of Malacostracan Research, 25, 150-305.”
• For a book chapter, you could write: “Wooster, B. W. (1937). A comparative study of modern Dutch cow creamers. In T. E. Travers (Ed.), A Detailed History of Tea Serviceware (pp. 127-155). London: Wimble Press."

• For example, you may write, “Kotb, M. A., Kamal, A. M., Aldossary, N. M., & Bedewi, M. A. (2019). Effect of vitamin D replacement on depression in multiple sclerosis patients. Multiple Sclerosis and Related Disorders, 29, 111-117. Retrieved from PubMed, https://www.ncbi.nlm.nih.gov/pubmed/30708308.
• If you’re citing a paper or article that was published online but did not come from an academic journal or database, provide information about the author (if known), the date of publication (if available), and the website where you found the article. For example: “Hill, M. (n.d.). Egypt in the Ptolemaic Period. Retrieved from https://www.metmuseum.org/toah/hd/ptol/hd_ptol.htm”

Citing Unpublished Sources in Your Reference List

• Print-only dissertations or theses.
• Articles or book chapters that are in press or have been recently prepared or submitted for publication.
• Papers that have been rejected for publication or were never intended for publication (such as student research papers or unpublished conference papers).

• If the paper is currently being prepared for publication, include the author’s name, the year when the current draft was completed, and the title of the article in italics, followed by “Manuscript in preparation.” For example: Wooster, B. W. (1932). What the well-dressed man is wearing. Manuscript in preparation.
• If the paper has been submitted for publication, format the citation the same way as if it were in preparation, but instead follow the title with “Manuscript submitted for publication.” For example: Wooster, B. W. (1932). What the well-dressed man is wearing. Manuscript submitted for publication.
• If the paper has been accepted for publication but is not yet published, replace the date with “in press.” Do not italicize the paper title, but do include the title of the periodical or book in which it will be published and italicize that. For example: Wooster, B. W. (in press). What the well-dressed man is wearing. Milady’s Boudoir.

• If the paper was written for a conference but never published, your citation should look like this: Riker, W. T. (2019, March). Traditional methods for the preparation of spiny lobe-fish. Paper presented at the 325th Annual Intergalactic Culinary Conference, San Francisco, CA.
• For an unpublished paper written by a student for a class, include details about the institution where the paper was written. For example: Crusher, B. H. (2019). A typology of Cardassian skin diseases. Unpublished manuscript, Department of External Medicine, Starfleet Academy, San Francisco, CA.

• For example, you may write, “Pendlebottom, R. H. (2011). Iconography in Italian Frescos (Unpublished doctoral dissertation). New York University, New York, United States.”

Community Q&A

• If you want certain information to stand out in the research paper, then you can consider using a block quote. Thanks Helpful 0 Not Helpful 0

You Might Also Like

• ↑ https://libraryguides.vu.edu.au/apa-referencing/7JournalArticles
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_author_authors.html
• ↑ https://bowvalleycollege.libguides.com/c.php?g=714519&p=5093747
• ↑ https://guides.libraries.psu.edu/apaquickguide/intext
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_the_basics.html
• ↑ https://libguides.southernct.edu/c.php?g=7125&p=34582#1951239
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_electronic_sources.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_articles_in_periodicals.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_books.html
• ↑ https://morlingcollege.libguides.com/apareferencing/unpublished-or-informally-published-work
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/general_apa_faqs.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_other_print_sources.html

About This Article

To cite a research paper in-text in APA, name the author in the text to introduce the quote and put the publication date for the text in parentheses. At the end of your quote, put the page number in parentheses. If you don’t mention the author in your prose, include them in the citation. Start the citation, which should come at the end of the quote, by listing the author’s last name, the year of publication, and the page number. Make sure to put all of this information in parentheses. If there’s no author, use the name of the organization that published the paper or the first few words from the title. To learn how to cite published and unpublished sources in your reference list, keep reading! Did this summary help you? Yes No

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Citing Your Sources: Citing Basics

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Why is Citing Sources Important?

• To give credit to ideas that are not your own
• To provide support  for your argument
• To enable your reader to find and read the sources you used
• To avoid Honor Code   infractions

What Needs to be Cited?

• Exact wording taken from any source, including freely available websites
• Paraphrases of passages
• Summaries of another person's work
• Indebtedness to another person for an idea
• Use of another student's work
• Use of your own previous work

You do not need to cite common knowledge .

What's Involved in Citing Correctly?

In most citation styles, two parts are needed:

• An in-text citation Whenever you refer to the work of another person, you must indicate within the text where you got the information. The in-text citation provides a brief reference and points your reader to the complete citation.
• A list of works used The final page of your paper is usually a list of resources you cited or consulted.

Use the tabs above to learn about these two parts in your chosen citation style.

What Citation Style Should I Use?

Use the style recommended by your professor or choose one of the major styles below based on the discipline for your paper:

• ACS (American Chemical Society) for chemistry
• APA (American Psychological Association) for psychology and other social sciences
• CSE (Council of Science Editors) for biology
• notes and bibliography system for history, arts, and humanities
• author-date system  for sciences and social sciences
• MLA (Modern Language Association) for literature, arts, and humanities

What is Common Knowledge?

Widely-known, generally-accepted information that is not attributable to one source.

• Columbus Day is a national holiday that celebrates the arrival of explorer Christopher Columbus to America in 1492. (common knowledge, no citation needed)
• Many institutions, including Williams College, now recognize the holiday as Indigenous Peoples Day. (common knowledge, no citation needed)
• South Dakota was likely the first state to officially recognize Indigenous Peoples Day as a state holiday. 1 (not common knowledge, citation needed)

What is considered common knowledge can be tricky. When in doubt, ask your professor!

1. Delkic, Melina. "Indigenous Peoples Day, Explained."  New York Times , October 9, 2022, https://www.nytimes.com/article/indigenous-peoples-day.html.

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Citing Sources: When should I use a citation?

A citation should be used when content that did not originate with you is used to support your writing.

Content includes:

• words (quotations, phrases, sayings, etc.)
• thoughts or ideas (summarizations and paraphrases)
• audio or visual material (photos, videos, screencaptures, powerpoint slides, social media content, audio recordings, etc.)

Here are a few pages fr om Excelsior OWL's guide to writing process to get you started:

• Summarizing sources
• Paraphrasing sources
• Using quotations

What you don't need to cite

No need to cite what is known as common knowledge.

But, what is common knowledge?  Common knowledge includes information that someone can easily trace and find the answer to.  In an academic context, common knowledge will depend on the audience, but here are some examples to get you started:

• There are 24 hours in a day.
• The President of the United States can serve up to two terms in office, each term lasting four years.
• The phone number for emergency services in the United States is 9-1-1

For more examples of how to determine if something is common knowledge, check out this resource :

• Common Knowledge & Plagiarism from Excelsior OWL

When in doubt: CITE --  You won’t be judged harshly for adding a citation when it isn’t needed.  However, skipping a citation (whether it’s an accident or not) is considered plagiarism, which can have serious consequences.

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In-Text Citations: The Basics

Welcome to the Purdue OWL

This page is brought to you by the OWL at Purdue University. When printing this page, you must include the entire legal notice.

Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.

Note:  This page reflects the latest version of the APA Publication Manual (i.e., APA 7), which released in October 2019. The equivalent resource for the older APA 6 style  can be found here .

Reference citations in text are covered on pages 261-268 of the Publication Manual. What follows are some general guidelines for referring to the works of others in your essay.

Note:  On pages 117-118, the Publication Manual suggests that authors of research papers should use the past tense or present perfect tense for signal phrases that occur in the literature review and procedure descriptions (for example, Jones (1998)  found  or Jones (1998)  has found ...). Contexts other than traditionally-structured research writing may permit the simple present tense (for example, Jones (1998)  finds ).

APA Citation Basics

When using APA format, follow the author-date method of in-text citation. This means that the author's last name and the year of publication for the source should appear in the text, like, for example, (Jones, 1998). One complete reference for each source should appear in the reference list at the end of the paper.

If you are referring to an idea from another work but  NOT  directly quoting the material, or making reference to an entire book, article or other work, you only have to make reference to the author and year of publication and not the page number in your in-text reference.

On the other hand, if you are directly quoting or borrowing from another work, you should include the page number at the end of the parenthetical citation. Use the abbreviation “p.” (for one page) or “pp.” (for multiple pages) before listing the page number(s). Use an en dash for page ranges. For example, you might write (Jones, 1998, p. 199) or (Jones, 1998, pp. 199–201). This information is reiterated below.

Regardless of how they are referenced, all sources that are cited in the text must appear in the reference list at the end of the paper.

In-text citation capitalization, quotes, and italics/underlining

• Always capitalize proper nouns, including author names and initials: D. Jones.
• If you refer to the title of a source within your paper, capitalize all words that are four letters long or greater within the title of a source:  Permanence and Change . Exceptions apply to short words that are verbs, nouns, pronouns, adjectives, and adverbs:  Writing New Media ,  There Is Nothing Left to Lose .

( Note:  in your References list, only the first word of a title will be capitalized:  Writing new media .)

• When capitalizing titles, capitalize both words in a hyphenated compound word:  Natural-Born Cyborgs .
• Capitalize the first word after a dash or colon: "Defining Film Rhetoric: The Case of Hitchcock's  Vertigo ."
• If the title of the work is italicized in your reference list, italicize it and use title case capitalization in the text:  The Closing of the American Mind ;  The Wizard of Oz ;  Friends .
• If the title of the work is not italicized in your reference list, use double quotation marks and title case capitalization (even though the reference list uses sentence case): "Multimedia Narration: Constructing Possible Worlds;" "The One Where Chandler Can't Cry."

Short quotations

If you are directly quoting from a work, you will need to include the author, year of publication, and page number for the reference (preceded by "p." for a single page and “pp.” for a span of multiple pages, with the page numbers separated by an en dash).

You can introduce the quotation with a signal phrase that includes the author's last name followed by the date of publication in parentheses.

If you do not include the author’s name in the text of the sentence, place the author's last name, the year of publication, and the page number in parentheses after the quotation.

Long quotations

Place direct quotations that are 40 words or longer in a free-standing block of typewritten lines and omit quotation marks. Start the quotation on a new line, indented 1/2 inch from the left margin, i.e., in the same place you would begin a new paragraph. Type the entire quotation on the new margin, and indent the first line of any subsequent paragraph within the quotation 1/2 inch from the new margin. Maintain double-spacing throughout, but do not add an extra blank line before or after it. The parenthetical citation should come after the closing punctuation mark.

Because block quotation formatting is difficult for us to replicate in the OWL's content management system, we have simply provided a screenshot of a generic example below.

Formatting example for block quotations in APA 7 style.

Quotations from sources without pages

Direct quotations from sources that do not contain pages should not reference a page number. Instead, you may reference another logical identifying element: a paragraph, a chapter number, a section number, a table number, or something else. Older works (like religious texts) can also incorporate special location identifiers like verse numbers. In short: pick a substitute for page numbers that makes sense for your source.

Summary or paraphrase

If you are paraphrasing an idea from another work, you only have to make reference to the author and year of publication in your in-text reference and may omit the page numbers. APA guidelines, however, do encourage including a page range for a summary or paraphrase when it will help the reader find the information in a longer work. 

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Types of Research Papers: Overview

A research paper is simply a piece of writing that uses outside sources. There are different types of research papers with varying purposes and expectations for sourcing.

While this guide explains those differences broadly, ask your professor about specific disciplinary conventions.

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Paraphrasing for Better Research Papers: A Step-by-Step Guide

Research papers rely on other people’s writing as a foundation to create new ideas, but you can’t just use someone else’s words. That’s why paraphrasing is an essential writing technique for academic writing .

Paraphrasing rewrites another person’s ideas, evidence, or opinions in your own words. With proper attribution, paraphrasing helps you expand on another’s work and back up your own ideas with information from other sources while retaining your own writing style and tone.

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In this guide to paraphrasing, we explain how to strengthen your research papers through the art and craft of paraphrasing. We discuss the rules of ethical paraphrasing and share paraphrasing tips to help you get started. We even provide a few paraphrasing examples to illustrate how to do it yourself.

Why should you paraphrase in a research paper?

There are a few reasons research writers rely on paraphrasing in their papers:

• It shows comprehension. Paraphrasing requires you to understand ideas well enough to write them in your own words, so it not only helps you pass on information but also can help you learn and retain it.
• Paraphrasing other research or another writer’s work allows you to make valuable connections between ideas. Crediting your sources ethically and according to standards shows professional collaboration and respect.
• Paraphrasing can transform dense academic language into clearer or more modern text. Research writers employ it to make important information more understandable to a wider audience.
• Paraphrasing can increase the readability of your paper and make impactful direct quotes stand out.

When should paraphrasing be used in a research paper?

Paraphrasing is best used in concert with other research writing techniques, such as direct quotes and summaries. Here are instances when paraphrasing is appropriate for your research paper:

• Opt for paraphrasing when you can explain the same concept in plainer language or with less jargon.
• Paraphrasing works best when you need to share background information. Save direct quotes for striking statements and opinions. Rely on your own words to set the stage or provide context.
• Similarly, methodology from published studies generally doesn’t require direct quotes. Consider rewriting this contextual information in your own words.
• Paraphrasing also works well when you’re reporting key results from other research. You might restate the results by paraphrasing the main findings and then use a direct quote to share opinions about the value gleaned from the research.

Paraphrasing vs. quoting and summarizing

Unlike summarizing, paraphrasing uses roughly the same amount of detail as the original work but adjusts the language to demonstrate comprehension or make the text more understandable. Summarizing, in contrast, shortens the information to only the most important points.

While paraphrasing uses your own phrasing, quoting transcribes someone else’s words exactly, placing them in quotation marks so the reader knows someone else said them.

Direct quotes work best when you’re dealing with striking statements or opinions or when you want the tone of the original work to shine. Opt for paraphrasing when you can convey the same information in plain language. Sometimes, placing a direct quote in a sentence would lead to an error in subject-verb agreement or pronoun agreement, so paraphrasing works better in that case. Paraphrasing can also help modernize outdated wording, such as gendered language.

Generally, your writing will have the most readability and engagement if you strike a balance between paraphrasing and direct quotes.

Common paraphrasing mistakes

Writers risk committing plagiarism or losing clarity when they commit the following common paraphrasing mistakes:

• Substituting synonyms but not otherwise changing the phrasing
• Altering the original meaning
• Failing to add citations within the text and in the bibliography

Tips for paraphrasing successfully in your research paper

Try to rewrite from memory.

It can be difficult to reword a passage when you’re staring at it. Sometimes it can help to jot down notes about a passage and then try to rewrite the same sentiment from scratch. This forces your brain to think creatively because you can’t just copy the passage verbatim.

Focus on meaning, not just vocabulary

Paraphrasing is more than just swapping out words for their synonyms; you need to completely rewrite a sentence in your own style. Pay close attention to what the original author is trying to say as a whole, rather than focusing on the individual words. You may find yourself changing phrases or clauses. You may even come up with a way to restate the whole idea in a clearer or more concise way.

Change or update the language

Use synonyms to replace the essential words of an original passage with other words that mean the same thing, such as using “scientist” for “researcher,” or “seniors” for “the elderly.” You can also pay special attention to modernizing and broadening the language, such as for more gender inclusivity. This is a common approach to paraphrasing, although it’s not sufficient on its own.

Edit the sentence structure

Editing the sentence structure by rearranging the order of certain phrases and clauses or combining or breaking apart sentences is another strategy for paraphrasing. But if you do this, be careful not to overuse the passive voice.

Sometimes, you can rephrase a sentence by changing the parts of speech, such as converting a gerund into an operative verb or turning an adjective into an adverb . This strategy depends on the wording of the original passage, so you may not always have the opportunity.

Often, using only one of these techniques is not enough to differentiate your paraphrase from the source material. Try combining a few of these techniques on the same passage to set it apart.

Use transition phrasing

Some introductory and transitional phrases let your reader know you’re about to paraphrase an existing work. This tactic has the added benefit of helping you rewrite key findings by recasting the sentence structure with a new subject. Here are a few examples:

• Research shows that . . .
• A recent study found that . . .
• According to [author]’s analysis . . .
• Thanks to [source], we now know that . . .

Avoid patchwriting

If you don’t change enough of the original, it leaves “patches” of the source text that are easily identifiable to anyone who’s read it. This is known as patchwriting , and it’s a big problem with paraphrasing. Double-check to see if your paraphrase is unique enough with our free plagiarism checker .

Use ethical paraphrasing tools

Use Grammarly’s free paraphrasing tool to quickly paraphrase text with the help of generative AI. Paste the text into Grammarly to get options for how to paraphrase it instantly, then use our citations generator to get the proper attribution.

Learn about other aspects of research paper writing by browsing Grammarly’s research paper guides and resources .

Paraphrasing examples

Paraphrasing a research paper to avoid plagiarism.

Plagiarism refers to claiming another person’s ideas or words as your own. Paraphrasing alone is not enough to avoid plagiarism—if the words are different but the ideas are the same, you have to do more. That’s why citing paraphrases is not just morally right, it’s also a mandatory part of how to write a research paper , regardless of the research paper topic .

In academic writing, paraphrases typically use parenthetical citations , a type of in-text citation that places the author’s last name in parentheses, along with the year of publication or page number. Parenthetical citations are placed at the end of a passage, before the ending punctuation.

Additionally, you need to include a full citation for any source you use in the bibliography section at the end of the research paper. A full citation includes all the necessary details the reader needs to track down the source, such as the full title, the publication year, and the name of the publisher.

The information to include in both parenthetical and full citations depends on which formatting style you’re using: APA , MLA , or Chicago . Refer to our guides to learn more about how to properly cite your paraphrasing in whatever style you prefer.

If you’re still having trouble citing paraphrases, you can use our free citation generator to save time.

How to paraphrase for a research paper FAQs

When should you use paraphrasing in research writing.

If you want to use someone else’s ideas in your research paper, you can either paraphrase or quote them. Paraphrasing works best when the original wording has room for improvement or doesn’t fit in with the rest of your paper. Quoting is best when the original wording is already perfect.

What techniques can you use for paraphrasing practice?

The most common paraphrasing technique is using synonyms to replace some of the original words. That only gets you so far, though; also consider rearranging the sentence structure, adding/removing parts of the original, or changing some of the parts of speech (like turning a verb into a noun).

Do research paper paraphrasing rules change for different citation styles?

The rules for paraphrasing are always the same—but the rules for citations change a lot between styles. Review the citation guidelines for the formatting style you’re using, whether APA, MLA, or Chicago.

Can I paraphrase sources with no named author, like websites?

Yes, you can paraphrase websites, but ensure they are reputable. And you still need to cite the source according to the citation guidelines.

What’s the best way to integrate paraphrased information smoothly in my paper’s flow?

Transitional phrases can help you introduce paraphrased information. Try using language such as:

Use paraphrasing alongside other writing devices, such as direct quotes or summaries, to help your paper flow naturally.

Is it acceptable to paraphrase content from my own previous papers?

Yes, you can paraphrase your other content, unless your academic institution has a policy against it. You should still cite the original source material, even though it is your own work.

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The scientific community faces a formidable threat: the proliferation of “fake science.” Fueled by advancements in generative AI, fabricated research undermines scholarly publishing’s credibility and obstructs genuine scientific progress. The ease of creating convincing fake data and studies makes it increasingly challenging to discern legitimate research from fraudulent information. This trend not only wastes valuable resources and time but also erodes public trust in scientific findings. As this challenge continues to escalate, the scientific community must develop robust mechanisms for detecting and preventing the infiltration of fake science into academic circles.  

Table of Contents

• The Evolving and Multifaceted Threat  
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The Evolving and Multifaceted Threat   

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• AI in Education: It’s Time to Change the Perception That AI Promotes Laziness and Limits Critical Thinking Among Students
• The Do’s & Don’ts of Using Generative AI Tools Ethically in Academia
• Addressing Your Queries on AI Ethics, Plagiarism, and AI Detection
• What are Journal Guidelines on Using Generative AI Tools

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Computer Science > Computation and Language

Title: realm: reference resolution as language modeling.

Abstract: Reference resolution is an important problem, one that is essential to understand and successfully handle context of different kinds. This context includes both previous turns and context that pertains to non-conversational entities, such as entities on the user's screen or those running in the background. While LLMs have been shown to be extremely powerful for a variety of tasks, their use in reference resolution, particularly for non-conversational entities, remains underutilized. This paper demonstrates how LLMs can be used to create an extremely effective system to resolve references of various types, by showing how reference resolution can be converted into a language modeling problem, despite involving forms of entities like those on screen that are not traditionally conducive to being reduced to a text-only modality. We demonstrate large improvements over an existing system with similar functionality across different types of references, with our smallest model obtaining absolute gains of over 5% for on-screen references. We also benchmark against GPT-3.5 and GPT-4, with our smallest model achieving performance comparable to that of GPT-4, and our larger models substantially outperforming it.

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• Introduction
• Finding sources

Evaluating sources

• Integrating sources

Citing sources

Tools and resources, a quick guide to working with sources.

Working with sources is an important skill that you’ll need throughout your academic career.

It includes knowing how to find relevant sources, assessing their authority and credibility, and understanding how to integrate sources into your work with proper referencing.

This quick guide will help you get started!

Finding relevant sources

Sources commonly used in academic writing include academic journals, scholarly books, websites, newspapers, and encyclopedias. There are three main places to look for such sources:

• Research databases: Databases can be general or subject-specific. To get started, check out this list of databases by academic discipline . Another good starting point is Google Scholar .
• Your institution’s library: Use your library’s database to narrow down your search using keywords to find relevant articles, books, and newspapers matching your topic.
• Other online resources: Consult popular online sources like websites, blogs, or Wikipedia to find background information. Be sure to carefully evaluate the credibility of those online sources.

When using academic databases or search engines, you can use Boolean operators to refine your results.

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In academic writing, your sources should be credible, up to date, and relevant to your research topic. Useful approaches to evaluating sources include the CRAAP test and lateral reading.

CRAAP is an abbreviation that reminds you of a set of questions to ask yourself when evaluating information.

• Currency: Does the source reflect recent research?
• Relevance: Is the source related to your research topic?
• Authority: Is it a respected publication? Is the author an expert in their field?
• Accuracy: Does the source support its arguments and conclusions with evidence?
• Purpose: What is the author’s intention?

Lateral reading

Lateral reading means comparing your source to other sources. This allows you to:

• Verify evidence
• Contextualize information
• Find potential weaknesses

If a source is using methods or drawing conclusions that are incompatible with other research in its field, it may not be reliable.

Integrating sources into your work

Once you have found information that you want to include in your paper, signal phrases can help you to introduce it. Here are a few examples:

Following the signal phrase, you can choose to quote, paraphrase or summarize the source.

• Quoting : This means including the exact words of another source in your paper. The quoted text must be enclosed in quotation marks or (for longer quotes) presented as a block quote . Quote a source when the meaning is difficult to convey in different words or when you want to analyze the language itself.
• Paraphrasing : This means putting another person’s ideas into your own words. It allows you to integrate sources more smoothly into your text, maintaining a consistent voice. It also shows that you have understood the meaning of the source.
• Summarizing : This means giving an overview of the essential points of a source. Summaries should be much shorter than the original text. You should describe the key points in your own words and not quote from the original text.

Whenever you quote, paraphrase, or summarize a source, you must include a citation crediting the original author.

Citing your sources is important because it:

• Allows you to avoid plagiarism
• Establishes the credentials of your sources
• Backs up your arguments with evidence
• Allows your reader to verify the legitimacy of your conclusions

The most common citation styles are APA, MLA, and Chicago style. Each citation style has specific rules for formatting citations.

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Scribbr offers tons of tools and resources to make working with sources easier and faster. Take a look at our top picks:

• Citation Generator: Automatically generate accurate references and in-text citations using Scribbr’s APA Citation Generator, MLA Citation Generator , Harvard Referencing Generator , and Chicago Citation Generator .
• Plagiarism Checker : Detect plagiarism in your paper using the most accurate Turnitin-powered plagiarism software available to students.
• AI Proofreader: Upload and improve unlimited documents and earn higher grades on your assignments. Try it for free!
• Paraphrasing tool: Avoid accidental plagiarism and make your text sound better.
• Grammar checker : Eliminate pesky spelling and grammar mistakes.
• Summarizer: Read more in less time. Distill lengthy and complex texts down to their key points.
• AI detector: Find out if your text was written with ChatGPT or any other AI writing tool. ChatGPT 2 & ChatGPT 3 supported.
• Proofreading services : Have a human editor improve your writing.
• Citation checker: Check your work for citation errors and missing citations.
• Knowledge Base : Explore hundreds of articles, bite-sized videos, time-saving templates, and handy checklists that guide you through the process of research, writing, and citation.