Columbia subject headings:
CGT-FO (Union)--History.
Confédération générale du travail--History.
Labor unions--France--History--20th century.
Syndicalism--France--History--20th century.
Harvard subject headings:
CGT-FO (Union)--History.
Labor unions--Political activity--France--Paris--History.
Princeton subject headings:
CGT-FO (Union)--History.
Labor unions--Political activity--France--Paris--History.