APA (7th ed.) Citation

U.S. Fish and Wildlife Service. (2006). Patuxent Research Refuge: Birds. U.S. Fish & Wildlife Service.

Chicago Style (17th ed.) Citation

U.S. Fish and Wildlife Service. Patuxent Research Refuge: Birds. [Washington, D.C.]: U.S. Fish & Wildlife Service, 2006.

MLA (9th ed.) Citation

U.S. Fish and Wildlife Service. Patuxent Research Refuge: Birds. U.S. Fish & Wildlife Service, 2006.