APA (7th ed.) Citation

United States. Bureau of Entomology. (1934). Biology and control of tree hoppers injurious to fruit trees in Pacific Northwest. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology. Biology and Control of Tree Hoppers Injurious to Fruit Trees in Pacific Northwest. [Washington]: [s.n.], 1934.

MLA (9th ed.) Citation

United States. Bureau of Entomology. Biology and Control of Tree Hoppers Injurious to Fruit Trees in Pacific Northwest. [s.n.], 1934.