Columbia subject headings:
Political participation--United States.
Public opinion--United States.
United States--Politics and government--1945-1989--Public opinion.
Harvard subject headings:
Political participation--United States
Public opinion--United States
United States--Politics and government--1945-1989--Public opinion.
Princeton subject headings:
Political participation--United States.
Public opinion--United States.
United States--Politics and government--1945-1989--Public opinion.