Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.