Columbia subject headings:
United States--Economic conditions--1945-
United States--Politics and government--1945-1989.
United States--Social conditions--1945-
Harvard subject headings:
United States--Economic conditions--1945-
United States--Politics and government--1945-1989.
United States--Social conditions--1945-
Princeton subject headings:
United States--Economic conditions--1945-
United States--Politics and government--1945-.
United States--Social conditions--1945-