Cita APA (7th ed.)
Corey, G., & Corey, M. S. (1987). Groups: Process and practice (3rd ed.). Brooks/Cole Pub. Co..
Cita Chicago (17th ed.)
Corey, Gerald, i Marianne Schneider Corey. Groups: Process and Practice. 3rd ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1987.
Cita MLA (9th ed.)
Corey, Gerald, i Marianne Schneider Corey. Groups: Process and Practice. 3rd ed. Brooks/Cole Pub. Co., 1987.
Atenció: Aquestes cites poden no estar 100% correctes.