Lua APA (7ú heag.)
Corey, G., & Corey, M. S. (1987). Groups: Process and practice (3rd ed.). Brooks/Cole Pub. Co..
Lua i Stíl Chicago (17ú heag.)
Corey, Gerald, agus Marianne Schneider Corey. Groups: Process and Practice. 3rd ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1987.
Lua MLA (9ú heag.)
Corey, Gerald, agus Marianne Schneider Corey. Groups: Process and Practice. 3rd ed. Brooks/Cole Pub. Co., 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.