APA (7th ed.) Citation

United States. Bureau of Entomology. (1928). Questions and answers on European corn borer. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology. Questions and Answers on European Corn Borer. Washington: [publisher not identified], 1928.

MLA (9th ed.) Citation

United States. Bureau of Entomology. Questions and Answers on European Corn Borer. [publisher not identified], 1928.

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