APA (7th ed.) Citation

United States. Army. Chemical Warfare Service. (1931). Handbook of chemical warfare agents. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Army. Chemical Warfare Service. Handbook of Chemical Warfare Agents. Washington: U.S. GPO, 1931.

MLA (9th ed.) Citation

United States. Army. Chemical Warfare Service. Handbook of Chemical Warfare Agents. U.S. GPO, 1931.

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