United States. Army. Ordnance Department. (1917). Handbook of 9.45-inch trench mortar materiel, with instructions for its care and use. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Ordnance Department. Handbook of 9.45-inch Trench Mortar Materiel, with Instructions for Its Care and Use. Washington: U.S. GPO, 1917.
MLA (9th ed.) CitationUnited States. Army. Ordnance Department. Handbook of 9.45-inch Trench Mortar Materiel, with Instructions for Its Care and Use. U.S. GPO, 1917.
Warning: These citations may not always be 100% accurate.