Szymanski, M. L., & Dubovsky, J. A. (2013). Distribution and derivation of the Blue-winged Teal (Anas discors) harvest, 1970-2003. Department of the Interior, U.S. Fish and Wildlife Service.
Chicago Style (17th ed.) CitationSzymanski, Michael L., and James A. Dubovsky. Distribution and Derivation of the Blue-winged Teal (Anas Discors) Harvest, 1970-2003. Washington, D.C.: Department of the Interior, U.S. Fish and Wildlife Service, 2013.
MLA (9th ed.) CitationSzymanski, Michael L., and James A. Dubovsky. Distribution and Derivation of the Blue-winged Teal (Anas Discors) Harvest, 1970-2003. Department of the Interior, U.S. Fish and Wildlife Service, 2013.
Warning: These citations may not always be 100% accurate.