(2002). Mental retardation: Definition, classification, and systems of supports (10. ed.). American Assoc. on Mental Retardation.
Chicago-Zitierstil (17. Ausg.)Mental Retardation: Definition, Classification, and Systems of Supports. 10. ed. Washington, DC: American Assoc. on Mental Retardation, 2002.
MLA-Zitierstil (9. Ausg.)Mental Retardation: Definition, Classification, and Systems of Supports. 10. ed. American Assoc. on Mental Retardation, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.