APA (7th ed.) Citation

Kelsey, C. (1916). The physical basis of society. D. Appleton.

Chicago Style (17th ed.) Citation

Kelsey, Carl. The Physical Basis of Society. New York [etc.]: D. Appleton, 1916.

MLA (9th ed.) Citation

Kelsey, Carl. The Physical Basis of Society. D. Appleton, 1916.