General Rules for Physical Description (optional) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style

Give information on the physical characteristics if a volume is published in a microform (microfilm, microfiche, etc.), such as 3 microfiche: black & white, 2 × 4 in. Such information helps the reader select the appropriate equipment with which to view the microform.

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Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Chapter 2: Books