United States. Army. Ordnance Department. (1917). Description of 3-inch (15-pounder) gun, model of 1903, and its breech mechanism. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Ordnance Department. Description of 3-inch (15-pounder) Gun, Model of 1903, and Its Breech Mechanism. Washington: U.S. GPO, 1917.
MLA (8th ed.) CitationUnited States. Army. Ordnance Department. Description of 3-inch (15-pounder) Gun, Model of 1903, and Its Breech Mechanism. U.S. GPO, 1917.
Warning: These citations may not always be 100% accurate.