APA (7th ed.) Citation

United States. Army. Air Corps. (1918). History of plan of bombardment by airplanes. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. History of Plan of Bombardment by Airplanes. [Place of publication not identified]: [publisher not identified], 1918.

MLA (9th ed.) Citation

United States. Army. Air Corps. History of Plan of Bombardment by Airplanes. [publisher not identified], 1918.

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