Não informado. (2004). Exceptional Child Education Abstracts. Council for Exceptional Children.
Chicago-Zitierstil (17. Ausg.)Não informado. Exceptional Child Education Abstracts. Reston, Va: Council for Exceptional Children, 2004.
MLA-Zitierstil (8. Ausg.)Não informado. Exceptional Child Education Abstracts. Council for Exceptional Children, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.