Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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