Johnsgard, P. A. (1986). Birds of the Rocky Mountains: With particular reference to national parks in the northern Rocky Mountain region. Colorado Associated University Press.
Chicago Style (17th ed.) CitationJohnsgard, Paul A. Birds of the Rocky Mountains: With Particular Reference to National Parks in the Northern Rocky Mountain Region. Boulder, Colo.: Colorado Associated University Press, 1986.
MLA (9th ed.) CitationJohnsgard, Paul A. Birds of the Rocky Mountains: With Particular Reference to National Parks in the Northern Rocky Mountain Region. Colorado Associated University Press, 1986.
Warning: These citations may not always be 100% accurate.