APA (7th ed.) Citation

Corey, M. S., Corey, C., & Corey, G. (2014). Groups: Process and practice (9th ed.). Brooks/Cole, Cengage Learning.

Chicago Style (17th ed.) Citation

Corey, Marianne Schneider, Cindy Corey, and Gerald Corey. Groups: Process and Practice. 9th ed. Belmont, CA: Brooks/Cole, Cengage Learning, 2014.

MLA (9th ed.) Citation

Corey, Marianne Schneider, et al. Groups: Process and Practice. 9th ed. Brooks/Cole, Cengage Learning, 2014.