The general format for a reference to a print or photograph, including punctuation:
- author and title provided:
- no author named and title constructed:
Source: Patrias K. Citing medicine: the NLM style guide for authors, editors, and publishers [Internet]. 2nd ed. Wendling DL, technical editor. Bethesda (MD): National Library of Medicine (US); 2007 - [updated 2015 Oct 2; cited 2019 Nov 18]. Available from: http://www.nlm.nih.gov/citingmedicine