Helgen, K.M. (2005). "Family Aplodontiidae". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 753. ISBN 978-0-8018-8221-0. OCLC 62265494.
This template takes an optional id parameter and heading for the MSW3 entry on the species or other subtaxon in question.
For example:
{{MSW3 Aplodontiidae | id = 12300004 }}
gives
Helgen, K.M. (2005). "Family Aplodontiidae". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 753. ISBN 978-0-8018-8221-0. OCLC 62265494.
for the mountain beaver, Aplodontia rufa (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).
An optional |ref= parameter is supported but seldom used. It allows specification of reference names in Harvard references, for use in the {{citation}} template family. For example, use of |ref={{harvid}} or |ref={{SfnRef}} templates enables subsequent use of short-format templates like {{harvnb}} or {{sfn}} (see Yarkand hare and Long-tailed vole for examples of usage).