Columbia subject headings:
Fascism--Italy--History--20th century.
Labor unions--Italy--History--20th century.
Labor unions--Political activity--Italy--20th century.
Harvard subject headings:
Corporate state--Italy.
Depressions--1929--Italy.
Fascism--Italy--History--20th century
Italy--Politics and government--1914-1945.
Labor unions--Italy--History--20th century
Syndicalism--Italy--History--20th century.
Princeton subject headings:
Fascism--Italy--History--20th century.
Labor unions--Italy--History--20th century.
Labor unions--Italy--Political activity--20th century.