Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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