APA (7th ed.) Citation

United States. Army. Air Corps. (1921). Tests of balloon fabric. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Tests of Balloon Fabric. Washington: U.S. GPO, 1921.

MLA (9th ed.) Citation

United States. Army. Air Corps. Tests of Balloon Fabric. U.S. GPO, 1921.

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