APA (7th ed.) Citation

United States. National Park Service. (1982). Big Thicket National Preserve. National Park Service, U.S. Dept. of the Interior.

Chicago Style (17th ed.) Citation

United States. National Park Service. Big Thicket National Preserve. [Washington, D.C.?]: National Park Service, U.S. Dept. of the Interior, 1982.

MLA (9th ed.) Citation

United States. National Park Service. Big Thicket National Preserve. National Park Service, U.S. Dept. of the Interior, 1982.