APA (7th ed.) Citation

Hegner, R. W. (1942). College zoology. Macmillan.

Chicago Style (17th ed.) Citation

Hegner, Robert W. College Zoology. Neww York: Macmillan, 1942.

MLA (9th ed.) Citation

Hegner, Robert W. College Zoology. Macmillan, 1942.