APA (7th ed.) Citation

Pratt, C. C. (1939). The logic of modern psychology. The Macmillan Company.

Chicago Style (17th ed.) Citation

Pratt, Carroll C. The Logic of Modern Psychology. New York: The Macmillan Company, 1939.

MLA (9th ed.) Citation

Pratt, Carroll C. The Logic of Modern Psychology. The Macmillan Company, 1939.