APA (7th ed.) Citation

United States. National Park Service. (1960). Mound City Group National Monument, Ohio. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. National Park Service. Mound City Group National Monument, Ohio. [Washington]: [publisher not identified], 1960.

MLA (9th ed.) Citation

United States. National Park Service. Mound City Group National Monument, Ohio. [publisher not identified], 1960.

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