Παραπομπή APA
Keppel, G., & Zedeck, S. (1989). Data analysis for research designs: Analysis-of-variance and multiple regression/correlation approaches. New York: W.H. Freeman.
Παραπομπή Chicago StyleKeppel, Geoffrey., and Sheldon Zedeck. Data Analysis for Research Designs: Analysis-of-variance and Multiple Regression/correlation Approaches. New York: W.H. Freeman, 1989.
Παραπομπή MLAKeppel, Geoffrey., and Sheldon Zedeck. Data Analysis for Research Designs: Analysis-of-variance and Multiple Regression/correlation Approaches. New York: W.H. Freeman, 1989.
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