Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

Corey, Marianne Schneider, Gerald Corey, e Cindy Corey. Groups: Process and Practice. 10th edition. Boston, MA: Cengage Learning, 2018.

Citatione MLA (9a ed.)

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