APA (7th ed.) Citation

United States. Bureau of Narcotics. (1944). Opium poppy and other poppies. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Narcotics. Opium Poppy and Other Poppies. [Washington]: [s.n.], 1944.

MLA (9th ed.) Citation

United States. Bureau of Narcotics. Opium Poppy and Other Poppies. [s.n.], 1944.

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