APA (7th ed.) Citation

United States. Army. Air Corps. (1921). Effect of hydrogen impurities on airship fabrics; Effect of gasses and chemicals on balloon fabrics. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Air Corps. Effect of Hydrogen Impurities on Airship Fabrics; Effect of Gasses and Chemicals on Balloon Fabrics. Washington: U.S. GPO, 1921.

MLA (9th ed.) Citation

United States. Army. Air Corps. Effect of Hydrogen Impurities on Airship Fabrics; Effect of Gasses and Chemicals on Balloon Fabrics. U.S. GPO, 1921.