APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1941). Control of insects and mites attacking narcissus bulbs. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Control of Insects and Mites Attacking Narcissus Bulbs. [Washington]: [s.n.], 1941.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Control of Insects and Mites Attacking Narcissus Bulbs. [s.n.], 1941.

Warning: These citations may not always be 100% accurate.