APA (7th ed.) Citation

Keith, S. A. (1950). A new theory of human evolution. Watts.

Chicago Style (17th ed.) Citation

Keith, Sir Arthur. A New Theory of Human Evolution. Watts, 1950.

MLA (8th ed.) Citation

Keith, Sir Arthur. A New Theory of Human Evolution. Watts, 1950.

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