APA (7th ed.) Citation

United States. Army. Air Corps. (1922). Reinforced ply-wood web spars (Airplane Section, S. and A. Branch). U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Reinforced Ply-wood Web Spars (Airplane Section, S. and A. Branch). Washington: U.S. GPO, 1922.

MLA (9th ed.) Citation

United States. Army. Air Corps. Reinforced Ply-wood Web Spars (Airplane Section, S. and A. Branch). U.S. GPO, 1922.

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