Não informado. (1978). Journal for special educators. American Association of Special Educators.
Chicago-referens (17:e uppl.)Não informado. Journal for Special Educators. New York: American Association of Special Educators, 1978.
MLA-referens (8:e uppl.)Não informado. Journal for Special Educators. American Association of Special Educators, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.