Columbia subject headings:
Blacklisting of entertainers--United States.
Communism--United States--1917-
Motion picture industry--United States.
Harvard subject headings:
Blacklisting of entertainers--United States
Communism--United States--1917-
Motion picture industry--United States
Princeton subject headings:
Blacklisting of entertainers--United States.
Communism--United States.
Motion picture industry--United States.