This template takes an optional id parameter, heading and page number or numbers for the MSW3 entry on the species or other subtaxon in question.

For example:

{{MSW3 Lagomorpha | id = 13500094 | page = 194}}

gives

Hoffman, R. S.; Smith, A. T. (2005). "Order Lagomorpha". In Wilson, D. E.; Reeder, D. M (eds.). Mammal Species of the World (3rd ed.). Johns Hopkins University Press. p. 194. ISBN 978-0-8018-8221-0. OCLC 62265494. {{cite book}}: Invalid |ref=harv (help)

for the pygmy rabbit, Brachylagus idahoensis (the chapter link goes to the MSW3 web page for the species entry, while the title link goes to the Google Books preview for MSW3).

In the following example, a heading is added, which then replaces "Order Lagomorpha":

{{MSW3 Lagomorpha | id = 13500265 | pages = 206–207 | heading = Genus ''Pronolagus''}}

giving

Hoffman, R. S.; Smith, A. T. (2005). "Genus Pronolagus". In Wilson, D. E.; Reeder, D. M (eds.). Mammal Species of the World (3rd ed.). Johns Hopkins University Press. pp. 206–207. ISBN 978-0-8018-8221-0. OCLC 62265494. {{cite book}}: Invalid |ref=harv (help)

for Pronolagus (the heading link now goes to the MSW3 web page for the genus entry).