APA (7th ed.) Citation

United States. Army. Air Corps. (1920). Covering wing gasoline tanks in Martin bomber. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Covering Wing Gasoline Tanks in Martin Bomber. Washington: U.S. GPO, 1920.

MLA (9th ed.) Citation

United States. Army. Air Corps. Covering Wing Gasoline Tanks in Martin Bomber. U.S. GPO, 1920.

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