Percentage of Students With Disabilities Ages 6-21: 1986-96. US Department of Education.
Citazione stile Chigago Style (17a edizione)Percentage of Students With Disabilities Ages 6-21: 1986-96. US Department of Education.
Citatione MLA (9a ed.)Percentage of Students With Disabilities Ages 6-21: 1986-96. US Department of Education.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.