United States. Bureau of Sport Fisheries and Wildlife. (1956). Waterfowl hunting: Clear Lake National Wildlife Refuge, Modoc County, California. U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife.
Chicago Style (17th ed.) CitationUnited States. Bureau of Sport Fisheries and Wildlife. Waterfowl Hunting: Clear Lake National Wildlife Refuge, Modoc County, California. [Washington, D.C.]: U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife, 1956.
MLA (9th ed.) CitationUnited States. Bureau of Sport Fisheries and Wildlife. Waterfowl Hunting: Clear Lake National Wildlife Refuge, Modoc County, California. U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife, 1956.