Columbia subject headings:
France--Politics and government--1914-1940.
Front populaire.
Labor unions--France--History.
Working class--France--History.
Harvard subject headings:
France--Politics and government--1914-1940.
Front populaire
Labor movement--France--History
Labor unions--France--History
Labor--France--History
Working class--France--History
Princeton subject headings:
France--Politics and government--1914-1940.
Front populaire.
Labor unions--France--History.
Labor--France--History.