APA (7th ed.) Citation

United States. Bureau of Plant Industry. (1939). Seed corn. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Plant Industry. Seed Corn. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of Plant Industry. Seed Corn. [s.n.], 1939.

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