APA (7th ed.) Citation

United States. War Department. (1931). Ordnance maintenance, mobile artillery: 155-mm. gun materiel, M1918. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Ordnance Maintenance, Mobile Artillery: 155-mm. Gun Materiel, M1918. Washington: U.S. GPO, 1931.

MLA (8th ed.) Citation

United States. War Department. Ordnance Maintenance, Mobile Artillery: 155-mm. Gun Materiel, M1918. U.S. GPO, 1931.

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