Columbia subject headings:
Fascism--Italy--History.
Italy--Politics and government--20th century.
Left-wing extremists--Italy--History.
Harvard subject headings:
Italy--Politics and government--20th century.
Left-wing extremists--Italy--History.
Princeton subject headings:
Fascism--Italy--History.
Italy--Politics and government--20th century.
Left-wing extremists--Italy--History.