APA (7th ed.) Citation

United States. War Department. (1931). Mobile artillery materiel: 155-mm. howitzer materiel, M1917 and M1918. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Mobile Artillery Materiel: 155-mm. Howitzer Materiel, M1917 and M1918. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. War Department. Mobile Artillery Materiel: 155-mm. Howitzer Materiel, M1917 and M1918. GPO, 1931.

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