Não informado. (1876). American journal of mental deficiency. American Association on Mental Deficiency.
Chicago-Zitierstil (17. Ausg.)Não informado. American Journal of Mental Deficiency. Washington: American Association on Mental Deficiency, 1876.
MLA-Zitierstil (8. Ausg.)Não informado. American Journal of Mental Deficiency. American Association on Mental Deficiency, 1876.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.