United States. War Department. (1933). Technical Regulations: Mobile Artillery Materiel: 240-mm Howitzer Materiel, M1918 and M1918A1, prepared under direction of chief of ordnance. [s.n.].
Chicago Style (17th ed.) CitationUnited States. War Department. Technical Regulations: Mobile Artillery Materiel: 240-mm Howitzer Materiel, M1918 and M1918A1, Prepared Under Direction of Chief of Ordnance. [Washington]: [s.n.], 1933.
MLA (9th ed.) CitationUnited States. War Department. Technical Regulations: Mobile Artillery Materiel: 240-mm Howitzer Materiel, M1918 and M1918A1, Prepared Under Direction of Chief of Ordnance. [s.n.], 1933.
Warning: These citations may not always be 100% accurate.