APA (7th ed.) Citation

Corey, G., & Corey, M. S.. (1977). Groups: Process and practice. Brooks/Cole.

Chicago Style (17th ed.) Citation

Corey, Gerald, and Marianne Schneider Corey. Groups: Process and Practice. Monterey, Calif.: Brooks/Cole, 1977.

MLA (9th ed.) Citation

Corey, Gerald, and Marianne Schneider Corey. Groups: Process and Practice. Brooks/Cole, 1977.