Cita APA (7a ed.)

Douglas, O. B., & Holland, B. F. (1938). Fundamentals of educational psychology. Macmillan.

Cita Chicago Style (17a ed.)

Douglas, Oscar Berry, y Benjamin Frank Holland. Fundamentals of Educational Psychology. New York: Macmillan, 1938.

Cita MLA (8a ed.)

Douglas, Oscar Berry, y Benjamin Frank Holland. Fundamentals of Educational Psychology. Macmillan, 1938.