Columbia subject headings:
Aquarone, Alberto--Congresses.
Historians--Italy--Congresses.
Italy--Politics and government--1870-1914--Congresses.
Italy--Politics and government--1914-1945--Congresses.
Liberalism--Italy--Congresses.
Harvard subject headings:
Aquarone, Alberto--Congresses.
Italy--Politics and government--Congresses.
Princeton subject headings:
Aquarone, Alberto--Congresses.
Historians--Italy--Congresses.
Italy--Politics and government--1870-1914--Congresses.
Italy--Politics and government--1914-1945--Congresses.
Liberalism--Italy--Congresses.