APA (7th ed.) Citation

United States. National Park Service. (1973). Guadalupe Mountains National Park (Rev. 1973.). [U.S. Govt. Print. Off.].

Chicago Style (17th ed.) Citation

United States. National Park Service. Guadalupe Mountains National Park. Rev. 1973. [Washington]: [U.S. Govt. Print. Off.], 1973.

MLA (9th ed.) Citation

United States. National Park Service. Guadalupe Mountains National Park. Rev. 1973. [U.S. Govt. Print. Off.], 1973.