APA (7th ed.) Citation

United States, United States. National Park Service, & Tolson, H. A. (1933). Laws relating to the National Park Service, the national parks and monuments. U S. Dept. of the Interior, National Park Service.

Chicago Style (17th ed.) Citation

United States, United States. National Park Service, and Hillory A. Tolson. Laws Relating to the National Park Service, the National Parks and Monuments. [Washington, D.C.]: U S. Dept. of the Interior, National Park Service, 1933.

MLA (9th ed.) Citation

United States, et al. Laws Relating to the National Park Service, the National Parks and Monuments. U S. Dept. of the Interior, National Park Service, 1933.