APA (7th ed.) Citation

United States. Army. Army, 6th. Office of the Chief. Public Affairs. (1976). Historic forts of the old West. The Office.

Chicago Style (17th ed.) Citation

United States. Army. Army, 6th. Office of the Chief. Public Affairs. Historic Forts of the Old West. [San Francisco]: The Office, 1976.

MLA (9th ed.) Citation

United States. Army. Army, 6th. Office of the Chief. Public Affairs. Historic Forts of the Old West. The Office, 1976.