APA (7th ed.) Citation

Hegner, R. (1957). Parade of the animal kingdom. The Macmillan.

Chicago Style (17th ed.) Citation

Hegner, Robert. Parade of the Animal Kingdom. New York: The Macmillan, 1957.

MLA (9th ed.) Citation

Hegner, Robert. Parade of the Animal Kingdom. The Macmillan, 1957.