Columbia subject headings:
Communist parties--France--History--20th century--Congresses.
France--Politics and government--20th century--Congresses.
Parti communiste français--Platforms--History--Congresses.
Parti socialiste (France)--Platforms--History--Congresses.
Political parties--France--History--20th century--Congresses.
Right and left (Political science)--France--History--20th century--Congresses.
Socialist parties--France--History--20th century--Congresses.
Harvard subject headings:
Communist parties--France--20th century.
France--Politics and government--20th century.
Socialist parties--France--20th century.
Princeton subject headings: