Van Dalen, D. B. (1979). Understanding educational research: An introduction (Fourth edition.). McGraw-Hill Book Company.
Style de citation Chicago (17e éd.)Van Dalen, Deobold B. Understanding Educational Research: An Introduction. Fourth edition. New York [i pozostałe]: McGraw-Hill Book Company, 1979.
Style de citation MLA (9e éd.)Van Dalen, Deobold B. Understanding Educational Research: An Introduction. Fourth edition. McGraw-Hill Book Company, 1979.
Attention : ces citations peuvent ne pas être correctes à 100%.