APA stil citiranja
Cook, T. D., & Campbell, D. T. (1979). Quasi-experimentation: Quasi-experimentation : design & analysis issues for field settings. Boston: Houghton Mifflin Company.
Chicago stil citiranjaCook, Thomas D., and Donald T. Campbell. Quasi-experimentation: Quasi-experimentation : design & analysis issues for field settings. Boston: Houghton Mifflin Company, 1979.
MLA stil citiranjaCook, Thomas D., and Donald T. Campbell. Quasi-experimentation: Quasi-experimentation : design & analysis issues for field settings. Boston: Houghton Mifflin Company, 1979.
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