United States. Army. Ordnance Department. (1922). Service handbook of horizontal distance altimeter, model of 1917, battery commander's station instrument and distant station instrument. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Ordnance Department. Service Handbook of Horizontal Distance Altimeter, Model of 1917, Battery Commander's Station Instrument and Distant Station Instrument. Washington: U.S. GPO, 1922.
MLA (9th ed.) CitationUnited States. Army. Ordnance Department. Service Handbook of Horizontal Distance Altimeter, Model of 1917, Battery Commander's Station Instrument and Distant Station Instrument. U.S. GPO, 1922.
Warning: These citations may not always be 100% accurate.