Box 30First editions

  • If a book does not carry any statement of edition, assume it is the first or only edition
  • Use 1st ed. only when you know that subsequent editions have been published and you are citing the earlier one

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-.
Copyright Notice

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.