APA (7th ed.) Citation

Orr, R. T. (1965). The animal kingdom. Macmillan.

Chicago Style (17th ed.) Citation

Orr, Robert Thomas. The Animal Kingdom. New York: Macmillan, 1965.

MLA (9th ed.) Citation

Orr, Robert Thomas. The Animal Kingdom. Macmillan, 1965.

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