APA (7th ed.) Citation

United States. Department of the Interior. Office of the Secretary. (1915). Regulations governing rangers in national parks. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Office of the Secretary. Regulations Governing Rangers in National Parks. Washington: U.S. GPO, 1915.

MLA (9th ed.) Citation

United States. Department of the Interior. Office of the Secretary. Regulations Governing Rangers in National Parks. U.S. GPO, 1915.

Warning: These citations may not always be 100% accurate.