Corey & Corey. (1982). Groups: Process and Practice (2nd ed.). Brooks Rub.com.
Citazione stile Chigago Style (17a edizione)Corey & Corey. Groups: Process and Practice. 2nd ed. Montere: Brooks Rub.com, 1982.
Citatione MLA (9a ed.)Corey & Corey. Groups: Process and Practice. 2nd ed. Brooks Rub.com, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.