Cita APA (7th ed.)

Gates, A. I. (1948). Educational psychology (3rd ed.). Macmillan.

Cita Chicago (17th ed.)

Gates, Arthur Irving. Educational Psychology. 3rd ed. New York: Macmillan, 1948.

Cita MLA (9th ed.)

Gates, Arthur Irving. Educational Psychology. 3rd ed. Macmillan, 1948.