Columbia subject headings:
Corporate state--Italy--History--20th century--Sources.
Fascism--Italy--History--20th century--Sources.
Labor unions--Political activity--Italy--History--20th century--Sources.
Syndicalism--Italy--History--20th century--Sources.
Harvard subject headings:
Corporate state--Italy--History--20th century--Sources.
Fascism--Italy--History--20th century--Sources.
Labor unions--Political activity--Italy--History--20th century--Sources.
Syndicalism--Italy--History--20th century--Sources.
Princeton subject headings:
Corporate state--Italy--History--20th century--Sources.
Fascism--Italy--History--20th century--Sources.
Labor unions--Italy--Political activity--History--20th century--Sources.
Syndicalism--Italy--History--20th century--Sources.