The American Psychological Association's 7th edition publication manual is the standard citation style for psychology, education, nursing, social work, and most social sciences. This guide covers every source type you are likely to encounter as a college student, with clear examples for in-text citations and reference list entries.
In-Text Citations: The Basics
APA uses the author-date citation system. Every in-text citation has two components: the author's last name and the year of publication. For direct quotations, add the page number.
Parenthetical vs Narrative Citations
Parenthetical (both elements in parentheses):
Research suggests that sleep deprivation impairs cognitive function (Walker, 2023).
Narrative (author integrated into the sentence):
Walker (2023) demonstrated that sleep deprivation impairs cognitive function.
Number of Authors
| Authors | Parenthetical | Narrative |
|---|---|---|
| 1 author | (Smith, 2024) | Smith (2024) |
| 2 authors | (Smith & Jones, 2024) | Smith and Jones (2024) |
| 3+ authors | (Smith et al., 2024) | Smith et al. (2024) |
Direct Quotations
For quotes under 40 words, use quotation marks and include the page number:
According to Chen (2024), "the replication crisis in psychology has fundamentally altered how researchers approach experimental design" (p. 47).
For quotes of 40 words or more, use a block quotation: indent 0.5 inches, do not use quotation marks, and place the period before the parenthetical citation.
Reference List: Formatting Rules
The reference list appears at the end of your paper on a new page titled "References" (centered, bold). Key formatting rules:
- Double-space all entries
- Use hanging indent (first line flush left, subsequent lines indented 0.5 inches)
- Arrange entries alphabetically by first author's last name
- For multiple works by the same author, order by year (earliest first)
- Italicize book titles, journal names, and volume numbers
Journal Articles
Article with DOI
Author, A. A., & Author, B. B. (Year). Title of article. Title of Periodical, Volume(Issue), page-page. https://doi.org/xxxxx
Example:
Reference: Rodriguez, M. L., & Kim, S. (2024). Effects of mindfulness-based interventions on test anxiety among college students: A meta-analysis. Journal of Educational Psychology, 116(3), 412-429. https://doi.org/10.1037/edu0000812
In-text: (Rodriguez & Kim, 2024, p. 418)
Article Without DOI (from library database)
Do not include database URLs. Treat as a print article and end the reference after the page numbers.
Reference: Thompson, R. (2023). Rural broadband access and educational inequality. Sociology of Education, 96(2), 156-173.
Online-Only Article with Article Number
Reference: Park, J., & Williams, T. (2025). Generative AI and academic integrity: Faculty perspectives. Computers & Education, 210, Article 104956. https://doi.org/10.1016/j.compedu.2025.104956
Books
Print Book
Author, A. A. (Year). Title of work: Capital letter also for subtitle. Publisher.
Reference: Gladwell, M. (2008). Outliers: The story of success. Little, Brown and Company.
In-text: (Gladwell, 2008, p. 42)
Edited Book
Reference: Williams, P. J., & Chen, L. (Eds.). (2023). Critical race theory in education: A reader. Routledge.
Chapter in an Edited Book
Reference: Harris, D. N. (2023). School choice and segregation. In P. J. Williams & L. Chen (Eds.), Critical race theory in education: A reader (pp. 145-168). Routledge.
E-Book
Reference: Kahneman, D. (2011). Thinking, fast and slow. Farrar, Straus and Giroux. https://www.amazon.com/dp/B00555X8OA
Websites and Online Content
Webpage with Author and Date
Reference: Centers for Disease Control and Prevention. (2025, February 14). Adolescent mental health: Data and statistics. https://www.cdc.gov/childrensmentalhealth/data.html
In-text: (Centers for Disease Control and Prevention [CDC], 2025) ... (CDC, 2025)
Webpage with Group Author, No Date
Reference: World Health Organization. (n.d.). Climate change and health. Retrieved May 20, 2026, from https://www.who.int/health-topics/climate-change
Blog Post
Reference: Harari, Y. N. (2024, November 3). What happens when AI reads everything humans have ever written? Sapiens. https://www.ynharari.com/blog/ai-reading
Social Media
Reference: Obama, B. [@BarackObama]. (2024, August 15). Today we celebrate the anniversary of the Inflation Reduction Act — the most significant climate legislation in American history [Tweet]. Twitter. https://twitter.com/BarackObama/status/1824093847561
Reports and Gray Literature
Government Report
Reference: U.S. Department of Education, Office for Civil Rights. (2024). 2024 Annual report to Congress (ED-2024-OCR-001). https://www2.ed.gov/about/reports/annual/ocr/report2024.pdf
Institutional Report
Reference: Pew Research Center. (2025, January 22). Teens, social media, and technology 2025. https://www.pewresearch.org/internet/2025/01/22/teens-social-media-and-technology-2025/
Dissertations and Theses
Published Dissertation
Reference: Nguyen, T. H. (2024). Bilingual education policy implementation in California: A case study of three school districts (Publication No. 31245678) [Doctoral dissertation, University of California, Berkeley]. ProQuest Dissertations and Theses Global.
Unpublished Thesis
Reference: Okafor, C. N. (2025). Code-switching and academic identity among first-generation Nigerian-American college students [Unpublished master's thesis]. Howard University.
Audiovisual Media
YouTube Video
Reference: TED. (2023, April 10). The single biggest reason why start-ups succeed [Video]. YouTube. https://www.youtube.com/watch?v=bNpx7gpSqbY
Podcast Episode
Reference: Vedantam, S. (Host). (2025, March 3). The science of motivation [Audio podcast episode]. In Hidden Brain. NPR. https://hiddenbrain.org/podcast/the-science-of-motivation/
Film or Documentary
Reference: Guggenheim, D. (Director). (2006). An inconvenient truth [Film]. Paramount Classics.
Legal Citations
Supreme Court Case
Reference: Brown v. Board of Education, 347 U.S. 483 (1954).
In-text: (Brown v. Board of Education, 1954)
Statute
Reference: Every Student Succeeds Act, 20 U.S.C. § 6301 et seq. (2015).
Common Mistakes to Avoid
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Missing hanging indent — The most visible formatting error. Set your word processor to create a 0.5-inch hanging indent for all reference entries.
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Incorrect use of "et al." — Use "et al." for three or more authors in every citation (not just the first one). Latin abbreviation "et al." means "and others." The period goes after "al." because it is an abbreviation.
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DOI formatting — In APA 7th, DOIs are formatted as URLs:
https://doi.org/10.xxxx/xxxxx. Do not include "Retrieved from" before a DOI. Do not include a period after a DOI or URL at the end of a reference. -
Italicizing the wrong elements — In APA 7th, italicize: book titles, journal names, journal volume numbers. Do not italicize: article titles, book chapter titles, journal issue numbers.
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Capitalization in article titles — Use sentence case for article and book chapter titles (only capitalize the first word, proper nouns, and the first word after a colon). Use title case for journal names.
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Including retrieval dates unnecessarily — Only include a retrieval date for sources that are designed to change over time and are not archived (e.g., a live-updating webpage without a publication date).
APA 7th vs APA 6th: Key Changes
If you used APA 6th edition previously, note these changes:
| Element | APA 6th | APA 7th |
|---|---|---|
| Publisher location | Required: New York, NY: Penguin | Omitted entirely |
| "Retrieved from" | Common before URLs | Not used before DOIs |
| In-text for 3-5 authors | First citation lists all; subsequent use "et al." | Use "et al." from first citation for 3+ authors |
| Running head | "RUNNING HEAD: TITLE" | "TITLE" only (no label) |
| Font | Times New Roman 12pt only | Multiple options: Calibri 11, Arial 11, Georgia 11, Times New Roman 12 |
| Singular "they" | Discouraged | Endorsed as gender-neutral pronoun |
APA Citation Generators: A Warning
Tools like Citation Machine, EasyBib, and even the citation feature in Google Scholar and library databases frequently produce errors. Common generator mistakes include:
- Missing DOIs for articles that have them
- Incorrect capitalization (using title case for article titles)
- Formatting author names incorrectly (e.g., "Smith, J.A." instead of "Smith, J. A." with spaces between initials)
- Listing the wrong publication date (using the database upload date instead of the original publication date)
Always verify generated citations against the official APA 7th manual or the APA Style website (apastyle.apa.org). One undetected citation error is unlikely to affect your grade. Ten undetected errors suggest carelessness that will cost you points.
Quick Reference Card
Most common source types at a glance:
- Journal article: Author. (Year). Title. Journal, Vol(Iss), pages. DOI
- Book: Author. (Year). Title. Publisher.
- Chapter: Author. (Year). Title. In Editor (Ed.), Book title (pp. xx-xx). Publisher.
- Webpage: Author. (Year, Month Day). Title. Site Name. URL
- Report: Author. (Year). Title (Report No. xxx). Publisher. URL
Mastering APA citation takes practice, but following the templates in this guide will handle 95% of the sources you encounter as an undergraduate or graduate student. For edge cases, consult the APA Style website or your institution's writing center.