Heiman, G. W. (2000). Basic statistics for the behavioral sciences (3rd ed.). Houghton Mifflin.
Chicago-viite (17. p.)Heiman, Gary W. Basic Statistics for the Behavioral Sciences. 3rd ed. Boston: Houghton Mifflin, 2000.
MLA-viite (9. p.)Heiman, Gary W. Basic Statistics for the Behavioral Sciences. 3rd ed. Houghton Mifflin, 2000.
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