Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and quasi-experimental designs for generalized causal inference. Houghton Mifflin.
Chicago Style aipamenaShadish, William R., Thomas D. Cook, and Donald Thomas Campbell. Experimental and Quasi-experimental Designs for Generalized Causal Inference. Boston: Houghton Mifflin, 2002.
MLA aipamenaShadish, William R., et al. Experimental and Quasi-experimental Designs for Generalized Causal Inference. Houghton Mifflin, 2002.
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