APA (7th ed.) Citation

Robert W.Hegner, K. A. College zoology. The Macmillan.

Chicago Style (17th ed.) Citation

Robert W.Hegner, Karl A>Stiles. College Zoology. The Macmillan.

MLA (8th ed.) Citation

Robert W.Hegner, Karl A>Stiles. College Zoology. The Macmillan.

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