Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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