Citazione APA

Corey, M. S., & Corey, G. (2002). Groups: Process and practice (6th ed.). Brooks/Cole-Thomson Learning.

Stile di citazione Chicago

Corey, Marianne Schneider, e Gerald Corey. Groups: Process and Practice. 6th ed. Australia ; Pacific Grove, CA: Brooks/Cole-Thomson Learning, 2002.

Citazione MLA

Corey, Marianne Schneider, e Gerald Corey. Groups: Process and Practice. 6th ed. Brooks/Cole-Thomson Learning, 2002.