Box 55Locating the date of update/revision

Books on the Internet are often updated or revised after publication. Look for the date accompanied by such words as updated, modified, revised, reviewed:

  • At the top, bottom, or sidebar of the first screen or the bottom of the last screen of the book
  • In the source code for the book if it is displayed by the Web browser

From: Chapter 22, Books and Other Individual Titles on the Internet

Cover of Citing Medicine
Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition.
Patrias K, author; Wendling D, editor.
Bethesda (MD): National Library of Medicine (US); 2007-.
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