Columbia subject headings:
Internal security--United States.
McCarthy, Joseph, 1908-1957.
Subversive activities--United States.
Harvard subject headings:
Internal security--United States
McCarthy, Joseph, 1908-1957.
Subversive activities--United States
United States--Politics and government--1953-1961.
Princeton subject headings:
Internal security--United States.
McCarthy, Joseph, 1908-1957.
Subversive activities--United States.