Não informado. (2003). Education of the Visually Handicapped. Association for Education of the Visually Handicapped.
Chicago-referens (17:e uppl.)Não informado. Education of the Visually Handicapped. Philadelphia, Pa: Association for Education of the Visually Handicapped, 2003.
MLA-referens (8:e uppl.)Não informado. Education of the Visually Handicapped. Association for Education of the Visually Handicapped, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.