Lua APA (7ú heag.)
Luft, J. (1984). Group Processes (3rd ed.). Mayfield Comp.
Lua i Stíl Chicago (17ú heag.)
Luft, Joseph. Group Processes. 3rd ed. California: Mayfield Comp, 1984.
Lua MLA (9ú heag.)
Luft, Joseph. Group Processes. 3rd ed. Mayfield Comp, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.