Columbia subject headings:
Elite (Social sciences)--United States.
Power (Social sciences)
Pressure groups--United States.
United States--Politics and government--1945-1989.
Harvard subject headings:
Elite (Social sciences)--United States.
Power (Social sciences)
Pressure groups--United States
United States--Politics and government--1945-1989.
Princeton subject headings:
Elite (Social sciences)--United States.
Power (Social sciences)
Pressure groups--United States.
United States--Politics and government--1945-1989.