APA (7th ed.) Citation

United States. Division of Labor Standards. (1939). Occupational diseases cause human waste; Causes and prevention of nitrous fumes poisoning. [s.n.].

Chicago Style (17th ed.) Citation

United States. Division of Labor Standards. Occupational Diseases Cause Human Waste; Causes and Prevention of Nitrous Fumes Poisoning. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Division of Labor Standards. Occupational Diseases Cause Human Waste; Causes and Prevention of Nitrous Fumes Poisoning. [s.n.], 1939.