Cita APA (7th ed.)
Welkowitz, J., Cohen, B. H., & Lea, R. B. (2012). Introductory statistics for the behavioral sciences (7th ed.). Wiley.
Cita Chicago (17th ed.)
Welkowitz, Joan, Barry H. Cohen, i R. Brooke Lea. Introductory Statistics for the Behavioral Sciences. 7th ed. Hoboken, N.J.: Wiley, 2012.
Cita MLA (9th ed.)
Welkowitz, Joan, et al. Introductory Statistics for the Behavioral Sciences. 7th ed. Wiley, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.