APA (7th ed.) Citation

Marshak, L. E., & Seligman, M. (1990). Group psychotheraphy: Interventions with special populations. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Marshak, Laura E., and Milton Seligman. Group Psychotheraphy: Interventions with Special Populations. Boston: Allyn and Bacon, 1990.

MLA (9th ed.) Citation

Marshak, Laura E., and Milton Seligman. Group Psychotheraphy: Interventions with Special Populations. Allyn and Bacon, 1990.