Marion, R. L. (1981). Educators, parents, and exceptional children: A handbook for counselors, teachers, and special educators. Aspen Systems Corp.
Chicago-Zitierstil (17. Ausg.)Marion, Robert L. Educators, Parents, and Exceptional Children: A Handbook for Counselors, Teachers, and Special Educators. Rockville, Md: Aspen Systems Corp, 1981.
MLA-Zitierstil (9. Ausg.)Marion, Robert L. Educators, Parents, and Exceptional Children: A Handbook for Counselors, Teachers, and Special Educators. Aspen Systems Corp, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.