APA (7th ed.) Citation

Whelan, D. B. (1938). Field crop entomology. Planographed by John S. Swift Co., Inc..

Chicago Style (17th ed.) Citation

Whelan, Don B. Field Crop Entomology. St. Louis ; Chicago [etc.]: Planographed by John S. Swift Co., Inc., 1938.

MLA (9th ed.) Citation

Whelan, Don B. Field Crop Entomology. Planographed by John S. Swift Co., Inc., 1938.

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