APA (7th ed.) Citation

Welkowitz, J., Ewen, R. B., & Cohen, J. (1976). Introductory statistics for the behavioral sciences (2nd ed.). Academic Press.

Chicago Style (17th ed.) Citation

Welkowitz, Joan, Robert B. Ewen, and Jacob Cohen. Introductory Statistics for the Behavioral Sciences. 2nd ed. New York: Academic Press, 1976.

MLA (9th ed.) Citation

Welkowitz, Joan, et al. Introductory Statistics for the Behavioral Sciences. 2nd ed. Academic Press, 1976.