APA Format: Complete Citation Guide (2026)

APA Format: Complete Citation Guide (2026)

This guide explains APA format clearly and practically for students, researchers, and professionals. Complete APA format guidance with step-by-step instructions and examples is provided below — and you can quickly build citations using Rephrasely's free citation generator at https://rephrasely.com/citation.

Introduction — What APA Format Is and Who Uses It

APA format is the citation and formatting style created by the American Psychological Association. It is widely used in psychology, education, social sciences, nursing, and related fields.

APA format controls document layout, in-text citations, and the reference list to ensure clarity, consistency, and proper credit for sources. Most current guidance follows the APA 7th edition conventions, which remain standard in 2026.

General Rules — Key Formatting Rules

• Page layout: 1-inch margins on all sides and 8.5" x 11" paper (or local equivalent).
• Font: accessible serif or sans-serif (e.g., 12-pt Times New Roman, 11-pt Calibri, or 11-pt Arial).
• Line spacing: double-space all text, including titles and reference list entries.
• Paragraphs: left-align body text and use a 0.5-inch first-line indent.
• Title page: student and professional formats differ; include title, author name, affiliation, course, instructor, and due date for student papers.
• Running head: professional papers may include a running head; student papers typically do not require one unless instructed.
• DOI/URL: present DOIs as URLs (e.g., https://doi.org/10.xxxx/xxxxx); include full URLs for online sources.
• Headings: use APA heading levels for organization (bold for Levels 1–3 as required).

How to Cite by Source Type — Step-by-Step

Below are common source types with formats and examples. Use the examples as templates and adjust author names, dates, titles, and source details accordingly.

1. Book (single author)

Format: Author, A. A. (Year). Title of book: Subtitle. Publisher.

Example: Smith, J. L. (2021). Cognitive approaches to learning. University Press.

In-text: (Smith, 2021) or Smith (2021).

2. Journal Article (online with DOI)

Format: Author, A. A., & Author, B. B. (Year). Title of article. Title of Journal, volume(issue), pages. https://doi.org/xxxx

Example: Lopez, R. M., & Chen, S. (2022). Memory consolidation across sleep stages. Journal of Cognitive Science, 14(2), 123–145. https://doi.org/10.1234/jcs.2022.014

In-text: (Lopez & Chen, 2022) for parenthetical; Lopez and Chen (2022) for narrative.

3. Website (no author)

Format: Title of webpage. (Year, Month Day). Site Name. URL

Example: Climate change indicators. (2023, April 5). Global Data Project. https://example.org/climate-indicators

In-text: use a shortened title in quotation marks for parenthetical citations: (“Climate Change Indicators,” 2023).

4. Chapter in an Edited Book

Format: Author, A. A. (Year). Title of chapter. In E. Editor & F. Editor (Eds.), Title of book (pp. xx–xx). Publisher.

Example: Garcia, P. H. (2019). Social identity and learning. In R. K. Brown & L. S. Tate (Eds.), Social psychology in the classroom (pp. 45–67). Education Press.

In-text: (Garcia, 2019).

5. Government or Technical Report

Format: Group Author. (Year). Title of report (Report No. xxx). Publisher. URL

Example: National Health Agency. (2020). Annual health statistics (Report No. 20-113). https://agency.gov/reports/2020-stats

In-text: (National Health Agency, 2020).

6. Conference Proceedings or Paper

Format: Author, A. A. (Year). Title of paper. In E. Editor (Ed.), Proceedings Title (pp. xx–xx). Publisher. DOI/URL

Example: Kumar, V. (2024). Advances in neural modeling. In L. H. Park (Ed.), Proceedings of the Neural Computation Conference (pp. 88–99). Neural Press. https://doi.org/10.2345/nc.2024.088

In-text: (Kumar, 2024).

In-Text Citations — Rules and Examples

APA format uses author–date parenthetical citations within the text. Choose narrative or parenthetical style based on how you integrate the source.

• One author: (Smith, 2021) or Smith (2021).
• Two authors: always cite both names: (Lopez & Chen, 2022).
• Three or more authors: use first author et al.: (Garcia et al., 2019).
• No author: use short title and year: (“Climate Change Indicators,” 2023).

For direct quotes, include a page or paragraph number: (Smith, 2021, p. 45) or (Website Title, 2023, para. 4). Use block quotes for excerpts of 40+ words and no quotation marks.

Reference List — Formatting Rules and Example

The reference list appears on a new page titled "References" and lists every source cited in the text. Entries are alphabetized by the first author’s surname.

Key rules: double-space entries, apply a hanging indent (0.5 inches), and use sentence case for article and chapter titles; italicize book and journal titles.

Example reference list (abridged):

References

Garcia, P. H. (2019). Social identity and learning. In R. K. Brown & L. S. Tate (Eds.), Social psychology in the classroom (pp. 45–67). Education Press.

Kumar, V. (2024). Advances in neural modeling. In L. H. Park (Ed.), Proceedings of the Neural Computation Conference (pp. 88–99). Neural Press. https://doi.org/10.2345/nc.2024.088

Lopez, R. M., & Chen, S. (2022). Memory consolidation across sleep stages. Journal of Cognitive Science, 14(2), 123–145. https://doi.org/10.1234/jcs.2022.014

National Health Agency. (2020). Annual health statistics (Report No. 20-113). https://agency.gov/reports/2020-stats

Smith, J. L. (2021). Cognitive approaches to learning. University Press.

Tip: validate DOI formatting (use https://doi.org/) and include URLs that are live. Use retrieval dates only for unstable sources (e.g., wikis).

Common Mistakes — Errors to Avoid

• Incorrect author order or punctuation: ensure ampersands in parentheses and ampersand vs. "and" in narrative citations are used correctly.
• Misusing et al.: for three or more authors, use "et al." from the first citation in APA 7th edition (unless a journal instructs otherwise).
• Wrong DOI format: never write "doi:" alone; use the full URL form: https://doi.org/10.xxxx/xxxx.
• Title capitalization errors: use sentence case for article and chapter titles, and title case only for journal and book titles (italicized).
• Improper hanging indent or single spacing: reference list must be double-spaced with hanging indents.

Actionable fix: run your references through a citation tool and then manually check capitalization, DOI formatting, and hanging indents.

Quick Workflow: Create APA Citations Efficiently

1. Collect source details: author(s), year, title, outlet, volume/issue/pages, DOI/URL.
2. Use Rephrasely's free citation generator to assemble formatted references: https://rephrasely.com/citation.
3. Paste generated citations into your reference list, apply hanging indents, and double-check capitalization and DOIs.
4. Run your draft through Rephrasely's plagiarism checker and ensure language clarity with the AI writer. Use the AI detector if required by your institution.

Final Tips

When in doubt, follow these practical rules: prefer DOI URLs over database URLs; include as much publication detail as available; and be consistent across entries. Keep copies of source pages in case URLs change.

For long projects, maintain a living reference file (BibTeX, RIS, or a simple spreadsheet) and export to APA when ready. This reduces manual errors and saves time.

Frequently Asked Questions

Do I need a running head in APA format?

Student papers in APA format typically do not require a running head unless your instructor asks for one. Professional manuscripts often include a short running head on every page. Check your assignment or publisher guidelines.

How do I format a DOI in APA references?

Always format the DOI as a URL: https://doi.org/10.xxxx/xxxxx. Do not use "doi:" or break the DOI across lines. If no DOI exists, include the stable URL when available.

Can Rephrasely help me build and check APA citations?

Yes. Use Rephrasely's free citation generator at https://rephrasely.com/citation to create APA-formatted references. You can also verify originality with the plagiarism checker, draft text with the AI writer, and confirm machine-generated text with the AI detector.