APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1939). Revolving plant cage for use in insect selectivity studies. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Revolving Plant Cage for Use in Insect Selectivity Studies. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Revolving Plant Cage for Use in Insect Selectivity Studies. [s.n.], 1939.