APA (7th ed.) Citation

United States. Army. Ordnance Department. (1890). Hydro-pneumatic gear for siege and heavy ordnance. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Ordnance Department. Hydro-pneumatic Gear for Siege and Heavy Ordnance. [Washington]: [publisher not identified], 1890.

MLA (9th ed.) Citation

United States. Army. Ordnance Department. Hydro-pneumatic Gear for Siege and Heavy Ordnance. [publisher not identified], 1890.

Warning: These citations may not always be 100% accurate.