Columbia subject headings:
Harvard subject headings:
Campaign funds--United States
Political action committees--United States.
Pressure groups--United States
United States--Politics and government--1945-1989.
United States. Congress. House--Reform.
Princeton subject headings:
Campaign funds--United States.
Political action committees--United States.
Pressure groups--United States.
United States--Politics and government--1945-1989.
United States. Congress. House--Reform.