Welkowitz, J., Cohen, B. H., & Lea, R. B. (2012). Introductory statistics for the behavioral sciences (7th ed.). Wiley.
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Dyfyniad Arddull Chicago
Welkowitz, Joan, Barry H. Cohen, and R. Brooke Lea. Introductory Statistics for the Behavioral Sciences. 7th ed. Hoboken, N.J.: Wiley, 2012.
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Dyfyniad MLA
Welkowitz, Joan, et al. Introductory Statistics for the Behavioral Sciences. 7th ed. Wiley, 2012.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.