Shadish, W. R., Cook, T. M., & Campbell, D. T. (2002). Experimental and Quasi-Experimental designs for generalized casual inference. Boston, New York: Houghton Mifflin Harcourt.
Chicago Style CitationShadish, William R., Thomas M. Cook, and Donald Thomas Campbell. Experimental and Quasi-Experimental Designs for Generalized Casual Inference. Boston, New York: Houghton Mifflin Harcourt, 2002.
MLA CitationShadish, William R., Thomas M. Cook, and Donald Thomas Campbell. Experimental and Quasi-Experimental Designs for Generalized Casual Inference. Boston, New York: Houghton Mifflin Harcourt, 2002.
Warning: These citations may not always be 100% accurate.