Columbia subject headings:
Harvard subject headings:
Labor movement--France--History--19th century.
Labor movement--France--History--20th century.
Labor unions--France--History--19th century.
Labor unions--France--History--20th century.
Radicalism--France--History--19th century.
Radicalism--France--History--20th century
Socialists--France--History--19th century.
Socialists--France--History--20th century.
Strikes and lockouts--France--History--19th century.
Strikes and lockouts--France--History--20th century.
Princeton subject headings:
Mouvement ouvrier--France--Histoire--19e siècle.
Mouvement ouvrier--France--Histoire--20e siècle.
Syndicats--France--Histoire--19e siècle.
Syndicats--France--Histoire--20e siècle.