APA (7th ed.) Citation

Shaffer, J. B. P., & Galinsky, M. D. (1989). Models of group therapy (2nd ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Shaffer, John B. P., and M. David Galinsky. Models of Group Therapy. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1989.

MLA (9th ed.) Citation

Shaffer, John B. P., and M. David Galinsky. Models of Group Therapy. 2nd ed. Prentice Hall, 1989.