APA (7th ed.) Citation

United States. National Park Service. (1984). Big Thicket: Where & what is it? 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: Where & What Is It? [Beaumont, Tex.]: Big Thicket National Preserve, National Park Service, U.S. Dept. of the Interior, 1984.

MLA (9th ed.) Citation

United States. National Park Service. Big Thicket: Where & What Is It? Big Thicket National Preserve, National Park Service, U.S. Dept. of the Interior, 1984.