APA (7th ed.) Citation

U.S. Fish and Wildlife Service. (2009). Patuxent Research Refuge: Amphibians and reptiles. U.S. Fish & Wildlife Service.

Chicago Style (17th ed.) Citation

U.S. Fish and Wildlife Service. Patuxent Research Refuge: Amphibians and Reptiles. [Washington, D.C.]: U.S. Fish & Wildlife Service, 2009.

MLA (8th ed.) Citation

U.S. Fish and Wildlife Service. Patuxent Research Refuge: Amphibians and Reptiles. U.S. Fish & Wildlife Service, 2009.