APA

U.S. Fish and Wildlife Service, . (1993). 1991 National survey of fishing, hunting, and wildlife associated recreation. Washington, D.C: Dept. of the Interior, U.S. Fish and Wildlife Service.

Chicago

U.S. Fish and Wildlife Service, . 1993. 1991 National survey of fishing, hunting, and wildlife associated recreation. Washington, D.C: Dept. of the Interior, U.S. Fish and Wildlife Service.

Harvard

U.S. Fish and Wildlife Service, . (1993). 1991 National survey of fishing, hunting, and wildlife associated recreation. Washington, D.C: Dept. of the Interior, U.S. Fish and Wildlife Service.

MLA

U.S. Fish and Wildlife Service, . 1991 National survey of fishing, hunting, and wildlife associated recreation. Washington, D.C: Dept. of the Interior, U.S. Fish and Wildlife Service. 1993.