How to Cite in AMA Format: Step-by-Step Guide

How to Cite in AMA Format: Step-by-Step Guide

Introduction — what AMA is and who uses it

The American Medical Association (AMA) style is a numeric citation system widely used in medicine, health sciences, and related fields. It emphasizes concise reference entries and numeric in-text citations to keep clinical and research writing clear and uncluttered.

Students, clinicians, researchers, and journal authors use AMA for manuscripts, reports, and theses. For quick formatting, try Rephrasely’s free citation generator: Rephrasely Citation Generator.

General Rules — key formatting rules

• Use superscript Arabic numerals for in-text citations in the order sources appear (1, 2, 3...).
• Reference list entries are numbered consecutively in citation order, not alphabetically.
• Author names: list last name followed by initials without periods (e.g., Smith JA).
• Article titles use sentence-style capitalization; journal names use standard abbreviations where appropriate.
• Provide DOIs for journal articles when available; include an access date and URL for web-only content.

How to Cite by Source Type — step-by-step with examples

1. Books

Format: Author(s). Title of Book. Edition. Publisher; Year.

Step-by-step: 1) List author last name and initials. 2) Provide full book title in italics or plain text. 3) Add edition if not first. 4) Add publisher and year.

Example:

2. Journal articles

Format: Author(s). Article title. Journal Name. Year;Volume(Issue):Pages. doi

Step-by-step: 1) List up to six authors; if more than six, list the first three followed by "et al." 2) Provide article title in sentence case. 3) Add abbreviated journal name, year, volume, issue in parentheses (if used), pages, and DOI.

Example:

3. Websites and web pages

Format: Author(s). Title of web page. Name of Website. Published Date. Updated Date. Accessed Month Day, Year. URL

Step-by-step: 1) Use a corporate author if no person is listed. 2) Include published and updated dates when shown. 3) Always include the access date and full URL.

Example:

4. Book chapters

Format: Chapter author(s). Chapter title. In: Editor(s), eds. Book Title. Edition. Publisher; Year:Pages.

Step-by-step: 1) List the chapter author, chapter title, then the book editors. 2) Give the book title, edition, publisher, year, and page range for the chapter.

Example:

5. Conference proceedings / presentations

Format for presented abstract: Author(s). Title. Presented at: Conference Name; Month Day, Year; Location. Publication details if available.

Step-by-step: 1) Give author(s) and title. 2) Provide conference name, date, and location. 3) If the abstract is published, add the journal or proceedings citation.

Example:

6. Government or organizational reports

Format: Corporate author. Title. Publisher; Year. DOI or URL. Accessed Month Day, Year.

Step-by-step: 1) Use the agency as the author if no personal author. 2) Include report number if present. 3) Provide URL and access date for online reports.

Example:

In-Text Citations — rules and examples

In AMA, in-text citations are superscript numbers that refer to the numbered reference list. Number each source in the order it first appears.

Placement rules: put the superscript number after the punctuation (period, comma) or directly after a clause or phrase it supports.

Examples:

Tip: If you cite the same source multiple times, use the same number throughout the document.

Reference List — formatting rules and example

General rules:

• Begin the reference list on a new page titled "References" or as directed by your publisher.
• Number entries sequentially in citation order using Arabic numerals.
• Use single spacing within entries and a blank line between entries (or follow journal guidelines).
• Do not use indentation rules inconsistent with your submission guidelines; many journals expect a hanging indent for each entry.

Sample reference list (first three entries):

Common Mistakes — errors to avoid

1. Incorrect author format.

   A common error is writing full first names or adding punctuation to initials. Use last name and initials without periods: Smith JA, not Smith, John A.

2. Wrong order of references.

   Do not alphabetize. References must be numbered in the order they are first cited in the text. Re-check numbering after edits.

3. Missing DOI or access dates.

   Omit neither the DOI for journal articles nor the access date for web-only sources. If a DOI is available, include it at the end of the citation.

4. Inconsistent citation style.

   Mixing elements from other styles (APA, Vancouver) creates errors. Use AMA conventions consistently throughout your document.

Actionable checklist before submission

• Run your reference list through Rephrasely’s citation generator to standardize formatting: https://rephrasely.com/citation.
• Use Rephrasely’s plagiarism checker to ensure paraphrases are properly attributed.
• If you drafted text with an AI tool, verify originality with the AI detector and polish language using the Rephrasely AI writer.
• Double-check author names, page ranges, and DOIs; confirm web links are accessible.

Frequently Asked Questions

How do I cite more than six authors in AMA?

List the first three authors followed by "et al." For example: Smith JA, Brown B, Lee T, et al. Then continue the rest of the citation as normal.

Where do I place the superscript citation in a sentence?

Place the superscript number after the punctuation (period or comma) at the end of the clause or sentence it supports. For example: The trial showed improved survival.^1

Can I use citation managers with AMA format?

Yes. Tools like EndNote, Zotero, and Mendeley support AMA output. After exporting, verify formatting—especially author initials, DOI presentation, and numbering—to match AMA requirements.