APA

U.S. Fish and Wildlife Service, . (2000). American woodcock population status. Laurel, Md: U.S. Fish and Wildlife Service.

Chicago

U.S. Fish and Wildlife Service, . 2000. American woodcock population status. Laurel, Md: U.S. Fish and Wildlife Service.

Harvard

U.S. Fish and Wildlife Service, . (2000). American woodcock population status. Laurel, Md: U.S. Fish and Wildlife Service.

MLA

U.S. Fish and Wildlife Service, . American woodcock population status. Laurel, Md: U.S. Fish and Wildlife Service. 2000.