Hedrick, T. E., Bickman, L., & Rog, D. J. (1993). Applied research design: A practical guide. Sage Publications.
Chicago (17e ed.) BronvermeldingHedrick, Terry E., Leonard Bickman, en Debra J. Rog. Applied Research Design: A Practical Guide. Newbury Park: Sage Publications, 1993.
MLA (8e ed.) BronvermeldingHedrick, Terry E., et al. Applied Research Design: A Practical Guide. Sage Publications, 1993.
Let op: Deze citaties zijn niet altijd 100% accuraat.