Wright, R. L. D. (1976). Understanding statistics: An informal introduction for the behavioral sciences. Harcourt Brace Jovanovich.
Chicago-viite (17. p.)Wright, Robert Leslie Douglas. Understanding Statistics: An Informal Introduction for the Behavioral Sciences. New York: Harcourt Brace Jovanovich, 1976.
MLA-viite (9. p.)Wright, Robert Leslie Douglas. Understanding Statistics: An Informal Introduction for the Behavioral Sciences. Harcourt Brace Jovanovich, 1976.
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