Columbia subject headings:
Communism--France--History--20th century.
Right and left (Political science)
Socialism--France--History--20th century.
Harvard subject headings:
Communism--France--History--20th century
France--Politics and government--1958-
Right and left (Political science)
Socialism--France--History--20th century
Princeton subject headings:
Communism--France--History--20th century.
Right and left (Political science)
Socialism--France--History--20th century.