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AMA Style Guide

The National University Library guide to AMA citation style

What is AMA Format?

AMA Manual of StyleThe American Medical Association (AMA), both a professional organization and a publisher, establishes citation style rules to encourage accuracy and consistency in scholarly communication. 

This guide was created as a supplement to the AMA Manual of Style (10th edition) for our students at National University and addresses the most common style questions and formatting issues. For more specific information, please refer to directly to your AMA Manual of Style. 

General Rules from the 10th Edition

  • In-Text Citations: Use Arabic superscript numerals outside periods and commas, and inside colons and semicolons.
  • Reference List: Cited works are numbered in order of initial appearance in the text.
  • Author: Names are inverted, and use only initials for first and middle names. No periods between initials.
  • Capitalization: In article titles only the first word and proper nouns and abbreviations that are ordinarily capitalized are capitalized.
  • Journal Title Abbreviations: In reference listings, journal titles are abbreviated according to the US National Library of Medicine’s Current Fact Sheet (Construction of National Library of Medicine title abbreviations at