APA (7th ed.) Citation

Essig, E. O. (1942). College entomology. The Macmillan company.

Chicago Style (17th ed.) Citation

Essig, E. O. College Entomology. New York: The Macmillan company, 1942.

MLA (9th ed.) Citation

Essig, E. O. College Entomology. The Macmillan company, 1942.

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