Columbia subject headings:
Regionalism--United States.
United States--Economic conditions--1971-1981.
United States--Politics and government--1945-1989.
United States--Social conditions--1960-1980.
Harvard subject headings:
Regionalism--United States
United States--Economic conditions--1971-1981.
United States--Politics and government--1945-1989.
United States--Social conditions--1960-1980.
United States--Social conditions--1980-2020
Princeton subject headings:
Regionalism--United States.
United States--Economic conditions--1971-.
United States--Politics and government--1945-1989.
United States--Social conditions--1960-.