(2007). Timing & Duration of Student Participation in Special Education in the Primary Grades. U.S. Department of Education.
Chicago-Zitierstil (17. Ausg.)Timing & Duration of Student Participation in Special Education in the Primary Grades. U.S. Department of Education, 2007.
MLA-Zitierstil (9. Ausg.)Timing & Duration of Student Participation in Special Education in the Primary Grades. U.S. Department of Education, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.