O'Brien, J. (1986). Discovering community: Learning from innovations in services to people with mental retardation. s.n..
Chicago-Zitierstil (17. Ausg.)O'Brien, John. Discovering Community: Learning from Innovations in Services to People with Mental Retardation. [Massachusetts: s.n., 1986.
MLA-Zitierstil (8. Ausg.)O'Brien, John. Discovering Community: Learning from Innovations in Services to People with Mental Retardation. s.n., 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.