APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1937). Shaker and modified Berlese funnel for extracting alfalfa weevils from baled hay. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Shaker and Modified Berlese Funnel for Extracting Alfalfa Weevils from Baled Hay. [Washington]: [s.n.], 1937.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Shaker and Modified Berlese Funnel for Extracting Alfalfa Weevils from Baled Hay. [s.n.], 1937.