Box 26First editions

  • If a program 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 were published and you wish to cite the earlier one

From: Chapter 21, Computer Programs on CD-ROM, DVD, or Disk

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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