APA Citatie

William Wiersma. (1991). Research methods in education: An introduction (5th.). Allyn and Bacon.

Chicago Style citaat

William Wiersma. Research Methods in Education: An Introduction. 5th. Boston: Allyn and Bacon, 1991.

MLA citatie

William Wiersma. Research Methods in Education: An Introduction. 5th. Allyn and Bacon, 1991.

Let op: Deze citaties zijn niet altijd 100% accuraat.