Citazione Stile APA (7a Edizione)

Travers, R. M. (1978). An introduction to educational research (4th ed.). Macmillan.

Citazione stile Chigago Style (17a edizione)

Travers, Robert M.W. An Introduction to Educational Research. 4th ed. New York: Macmillan, 1978.

Citatione MLA (9a ed.)

Travers, Robert M.W. An Introduction to Educational Research. 4th ed. Macmillan, 1978.