Columbia subject headings:
Harvard subject headings:
Federal government--United States--History--20th century.
Presidents--United States--History--20th century
United States--Politics and government--1945-1989.
United States--Social policy.
Princeton subject headings:
Federal government--United States--History--20th century.
Presidents--United States--History--20th century.
United States--Politics and government--1945-1989.
United States--Social policy.