Welkowitz, J. (1976). Introductory statistics for the behavioral sciences. Academic Press.
Chicago-viite (17. p.)Welkowitz, Joan. Introductory Statistics for the Behavioral Sciences. New York: Academic Press, 1976.
MLA-viite (9. p.)Welkowitz, Joan. Introductory Statistics for the Behavioral Sciences. Academic Press, 1976.
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