Title: Policy implementation and PL 99-457
Subjects: Preschool Education, Special education, Education prescolaire, Etats-Unis, Preschool Child, Fruhforderung, Disabled Persons, Enseignement prescolaire, Education of Intellectually Disabled, Special Education, Law and legislation, Education speciale, Education (Preschool), Droit, Children with disabilities, Enfants handicapes, Education, United States, Education, Preschool, Education Of Exceptional Children, Enseignement préscolaire, Éducation spéciale, Enfants handicapés, Éducation, Éducation préscolaire, États-Unis, Frühförderung
Places: United States, Etats-Unis