Cita APA (7th ed.)

Corey, M. S., Corey, G., & Corey, C. (2018). Groups: Process and practice (10th ed.). Cengage Learning.

Cita Chicago (17th ed.)

Corey, Marianne Schneider, Gerald Corey, i Cindy Corey. Groups: Process and Practice. 10th ed. San Francisco, CA: Cengage Learning, 2018.

Cita MLA (9th ed.)

Corey, Marianne Schneider, et al. Groups: Process and Practice. 10th ed. Cengage Learning, 2018.