.Couch, J. V. (1987). Fundamentals of statistics for the behavioral sciences (2nd ed.). .West Pub. Co.
Chicago-viite (17. p.).Couch, James V. Fundamentals of Statistics for the Behavioral Sciences. 2nd ed. St. Paul: .West Pub. Co, 1987.
MLA-viite (9. p.).Couch, James V. Fundamentals of Statistics for the Behavioral Sciences. 2nd ed. .West Pub. Co, 1987.
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