Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

AMA 11th Referencing Guide

Referencing guide for the 11th Edition of AMA Style

Pharmacopoeia (also used for encyclopedia and dictionary entries)

Use this format if:

  • You are using an entry from a Pharmacopoeia, encyclopaedia, medical dictionary or similar reference work
  • N.B. This is the same pattern used for a book chapter (EndNote Users: use "book section" and leave the author field blank)

You will need (minimum information in bold):

  • Author(s) (if available)
  • Chapter Title (in sentence case - not in italics)
  • Editor(s) (if available)
  • Pharmacopoeia/Encyclopaedia title (in italics - in Title Case)
  • Volume number and title (if there is more than one volume).
  • Edition number (if it is not the first edition)
  • Publisher's name
  • latest copyright year
  • Inclusive page numbers
  • Accessed date (if online - only if using URL)
  • DOI or URL (if online)


Pharmacopoeia entry (also used for encyclopedia and dictionary entries)

Author AA, Author BB. Title of entry. In: Editor AA, Editor BB, eds. Title of Pharmacopoeia. Vol no. Nth ed. Publisher; Year:page numbers. Accessed Month DD, YYYY. DOI or URL


  1. Ceylon cinnamon bark oil. In: British Pharmacopoeia 2013. Vol 5. The Stationery Office; 2012:3659-3660.
  2. Carbamazepine tablets. In: The Pharmocopeia of the United States of America. Vol 2. 31st  ed. The United States Pharmocopeial Convention; 2007:1631.
  3. Antihistamines. In Andrews A, Boden E eds. Black's Veterinary Dictionary. Bloomsbury; 2015. Accessed July 20, 2015.


  • Authors for the entry or editors for the book may not be available.
  • Contributors to encyclopedia and dictionaries are sometimes indicated by initials at the end of the entries - always try to find an author rather than assuming there isn't one simply because you cannot see a name in an obvious location.
  • Online books may not have page numbers.

We acknowledge the Australian Aboriginal and Torres Strait Islander peoples as the first inhabitants of the nation and acknowledge Traditional Owners of the lands where our staff and students, live, learn and work.Acknowledgement of Country