Fraenkel, J. R., & Wallen, N. E. (2006). How to design and evaluate research in education (6th ed.). Boston: McGraw-Hill.
Chicago Style citaatFraenkel, Jack R., en Norman E. Wallen. How to Design and Evaluate Research in Education. 6th ed. Boston: McGraw-Hill, 2006.
MLA citatieFraenkel, Jack R., en Norman E. Wallen. How to Design and Evaluate Research in Education. 6th ed. Boston: McGraw-Hill, 2006.
Let op: Deze citaties zijn niet altijd 100% accuraat.