APA (7th ed.) Citation

U.S. Fish and Wildlife Service. (2001). For the birds (Rev.). U.S. Fish & Wildlife Service.

Chicago Style (17th ed.) Citation

U.S. Fish and Wildlife Service. For the Birds. Rev. [Washington, D.C.]: U.S. Fish & Wildlife Service, 2001.

MLA (9th ed.) Citation

U.S. Fish and Wildlife Service. For the Birds. Rev. U.S. Fish & Wildlife Service, 2001.