APA (7th ed.) Citation

Hegner, R. W. (1931). College zoology (3ª ed.). The Macmillan.

Chicago Style (17th ed.) Citation

Hegner, Robert W. College Zoology. 3ª ed. New York: The Macmillan, 1931.

MLA (9th ed.) Citation

Hegner, Robert W. College Zoology. 3ª ed. The Macmillan, 1931.

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