APA-referens (7:e uppl.)
ZARFAS, D. MENTAL HEALTH SYSTEMS FOR PEOPLE WITH MENTAL RETARDATION. A CANADIAN PERSPECTIVE.
Chicago-referens (17:e uppl.)
ZARFAS, D.E. MENTAL HEALTH SYSTEMS FOR PEOPLE WITH MENTAL RETARDATION. A CANADIAN PERSPECTIVE.
MLA-referens (9:e uppl.)
ZARFAS, D.E. MENTAL HEALTH SYSTEMS FOR PEOPLE WITH MENTAL RETARDATION. A CANADIAN PERSPECTIVE.
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