Columbia subject headings:
Communism--Italy.
Democratici di sinistra.
Italy--Politics and government--1976-1994.
Italy--Politics and government--1994-2018.
Harvard subject headings:
Communism--Italy
Communism--Italy--History--20th century
Democratici di sinistra--History.
Democratici di sinistra.
Italy--Politics and government--1976-1994.
Italy--Politics and government--1994-2018
Partito comunista d'Italia--History.
Post-communism--Italy.
Socialism--Italy--History--20th century
Princeton subject headings:
Communism--Italy.
Democratici di sinistra.
Italy--Politics and government--1976-1994.
Italy--Politics and government--1994-.