Columbia subject headings:
Communism--Italy--History.
Nationalism--Italy--History.
Socialism--Italy--History.
Harvard subject headings:
Communism--Europe--History--20th century
Communism--Italy--History
Europe--Politics and government--20th century.
Nationalism--Europe--History--20th century
Nationalism--Italy--History
Socialism--Italy
Princeton subject headings:
Communism--Europe--History--20th century.
Europe--Politics and government--20th century.
Nationalism--Europe--History--20th century.