Columbia subject headings:
France, Western--Economic conditions--20th century--Congresses.
France, Western--Social conditions--20th century--Congresses.
Labor movement--France, Western--History--20th century--Congresses.
Social movements--France, Western--History--20th century--Congresses.
Strikes and lockouts--France, Western--History--20th century--Congresses.
Syndicalism--France, Western--History--20th century--Congresses.
Working class--France, Western--History--20th century--Congresses.
Harvard subject headings:
France, Western--Economic conditions--20th century--Congresses.
France, Western--Social conditions--20th century--Congresses.
Labor movement--France, Western--History--20th century--Congresses.
Social movements--France, Western--History--20th century--Congresses.
Strikes and lockouts--France, Western--History--20th century--Congresses.
Syndicalism--France, Western--History--20th century--Congresses.
Working class--France, Western--History--20th century--Congresses.
Princeton subject headings:
France, Western--Economic conditions--20th century--Congresses.
France, Western--Social conditions--20th century--Congresses.
Labor movement--France, Western--History--20th century--Congresses.
Social movements--France, Western--History--20th century--Congresses.
Strikes and lockouts--France, Western--History--20th century--Congresses.
Syndicalism--France, Western--History--20th century--Congresses.
Working class--France, Western--History--20th century--Congresses.