United States. Army. Ordnance Department. (1913). Description of Lewis depression position finders, model of 1898, type A, and emergency, type B, with instructions for their care and operation. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Ordnance Department. Description of Lewis Depression Position Finders, Model of 1898, Type A, and Emergency, Type B, with Instructions for Their Care and Operation. Washington: U.S. GPO, 1913.
MLA (9th ed.) CitationUnited States. Army. Ordnance Department. Description of Lewis Depression Position Finders, Model of 1898, Type A, and Emergency, Type B, with Instructions for Their Care and Operation. U.S. GPO, 1913.
Warning: These citations may not always be 100% accurate.