Columbia subject headings:
Harvard subject headings:
Europe--Politics and government.
Italy--Politics and government.
Revolutions and socialism--Hungary--History--20th century.
Socialism--Europe
Socialism--Europe--History
Socialism--Italy
Socialism--Italy--History
Princeton subject headings:
Europe--Politics and government.
Italy--Politics and government.
Revolutions and socialism--Hungary--History--20th century.
Socialism--Europe--History.
Socialism--Italy--History.