APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1940). Life history and control of imported willow leaf beetle. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Life History and Control of Imported Willow Leaf Beetle. [Washington]: [s.n.], 1940.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Life History and Control of Imported Willow Leaf Beetle. [s.n.], 1940.