APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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