Columbia subject headings:
Harvard subject headings:
Children with social disabilities--Education--Michigan--Ypsilanti.
Children with social disabilities--Michigan--Ypsilanti--Psychology.
Perry Preschool Project (Ypsilanti, Mich.)--History.
Students--Michigan--Ypsilanti--Social conditions.
Students--Michigan--Ypsilanti--Socioeconomic status.
Youth--Michigan--Ypsilanti--Psychology.
Princeton subject headings:
Children with social disabilities--Education--Michigan--Ypsilanti.
Children with social disabilities--Michigan--Ypsilanti--Psychology.
Perry Preschool Project (Ypsilanti, Mich.)--History.
Students--Michigan--Ypsilanti--Socioeconomic status.
Youth--Michigan--Ypsilanti--Psychology.