APA-viite (7. p.)
Welkowitz, J., Ewen, R. B., & Cohen, J. (2000). Introductory statistics for the behavioral sciences (5th ed.). Harcourt Brace College Publishers.
Chicago-viite (17. p.)
Welkowitz, Joan, Robert B. Ewen, ja Jacob Cohen. Introductory Statistics for the Behavioral Sciences. 5th ed. Fort Worth: Harcourt Brace College Publishers, 2000.
MLA-viite (9. p.)
Welkowitz, Joan, et al. Introductory Statistics for the Behavioral Sciences. 5th ed. Harcourt Brace College Publishers, 2000.
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