APA (7th ed.) Citation

United States. National Park Service & United States. National Park Service. (1970). Mound City Group. G.P.O..

Chicago Style (17th ed.) Citation

United States. National Park Service and United States. National Park Service. Mound City Group. Washington, D.C.: G.P.O., 1970.

MLA (9th ed.) Citation

United States. National Park Service and United States. National Park Service. Mound City Group. G.P.O., 1970.

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