Columbia subject headings:
Harvard subject headings:
Anti-communist movements--Europe--History--20th century--Congresses.
Anti-communist movements--Germany--History--20th century--Congresses.
Anti-communist movements--United States--History--20th century--Congresses.
Europe--Politics and government--20th century--Congresses.
Germany--Politics and government--20th century--Congresses.
United States--Politics and government--20th century--Congresses.
Princeton subject headings:
Anti-communist movements--Europe--History.
Anti-communist movements--Germany--History.
Anti-communist movements--United States--History.