2 literature references:

Author: Wilson, Don E., and DeeAnn M. Reeder, eds.
Year: 2005
Title:
Source: Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd ed., vols. 1 & 2
Author:
Year: 2003
Title:
Source: database, http://www.menv.gouv.qc.ca/biodiversite/centre.htm