APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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