APA (7th ed.) Citation

Clausen, C. P. (1940). Entomophagous insects. McGraw-Hill book company, inc..

Chicago Style (17th ed.) Citation

Clausen, Curtis P. Entomophagous Insects. New York, London: McGraw-Hill book company, inc., 1940.

MLA (9th ed.) Citation

Clausen, Curtis P. Entomophagous Insects. McGraw-Hill book company, inc., 1940.