Columbia subject headings:
Harvard subject headings:
Depressions--1929--United States
Education and state--United States--History--20th century.
Public schools--United States--History--20th century.
United States--Economic conditions--1971-1981.
Princeton subject headings:
Depressions--1929--United States.
Education and state--United States--History--20th century.
Public schools--United States--History--20th century.
United States--Economic conditions--1971-.