Citazione Stile APA (7a Edizione)

TRAVERS, R. M. (1969). An introduction to educational research.-- ed.3. The MacMillan Company.

Citazione stile Chigago Style (17a edizione)

TRAVERS, Robert M.W. An Introduction to Educational Research.-- Ed.3. New York: The MacMillan Company, 1969.

Citatione MLA (9a ed.)

TRAVERS, Robert M.W. An Introduction to Educational Research.-- Ed.3. The MacMillan Company, 1969.