Columbia subject headings:
Children with social disabilities--Education (Preschool)--United States.
Education, Preschool--United States.
Perry Preschool Project (Ypsilanti, Mich.)
Harvard subject headings:
Children with social disabilities--Education (Preschool)--United States.
Education, Preschool--United States.
Perry Preschool Project (Ypsilanti, Mich.)
Princeton subject headings:
Children with social disabilities--Education (Preschool)--United States.
Education, Preschool--United States.
Perry Preschool Project (Ypsilanti, Mich.)