Birds of the Rocky Mountains—References on Individual SpeciesBirds of the Rocky Mountains -- Paul A. Johnsgard
Date of this Version1-1-2009
Approximately 650 reference (through 1986). See "Supplement" for additional references to 2009.
Citation InformationPaul A. Johnsgard. "Birds of the Rocky Mountains—References on Individual Species" (2009)
Available at: http://works.bepress.com/paul_johnsgard/16/