Bickman, L., Hedrick, T. E., & Rog, D. J. (1993). Applied research design: A practical guide.
Chicago Edition CitationBickman, Leonard, Terry E. Hedrick, and Debra J. Rog. Applied Research Design: A Practical Guide. New Delhi, Sage Publications, 1993.
MLA Edition CitationBickman, Leonard, et al. Applied Research Design: A Practical Guide. 1993.
Warning: These citations may not always be 100% accurate.