Columbia subject headings:
Harvard subject headings:
Anti-communist movements--Switzerland--20th century.
Communism--Switzerland--History--20th century.
Intelligence service--Switzerland--History--20th century.
Schweizerischer Vaterländischer Verband--History--20th century.
Switzerland--Politics and government--History--20th century.
Princeton subject headings:
Anti-communist movements--Switzerland--History--20th century.
Switzerland--History--20th century.