Columbia subject headings:
Historiography--Italy.
Italy--Civilization.
Italy--Politics and government.
Political science--Italy--History.
Socialism--Italy--Historiography.
Harvard subject headings:
Communism--Italy--History
Italy--Politics and government--1945-
Partito comunista italiano--History.
Partito democratico della sinistra.
Political parties--Italy--History
Socialism--Italy--History
Princeton subject headings: