Columbia subject headings:
Italy--Politics and government--1870-1914--Congresses.
Italy--Politics and government--1914-1922--Congresses.
Liberalism--Italy--History--19th century--Congresses.
Liberalism--Italy--History--20th century--Congresses.
Sonnino, Sidney, 1847-1922--Congresses.
Harvard subject headings:
Italy--Politics and government--1870-1914--Congresses.
Italy--Politics and government--1914-1922--Congresses.
Liberalism--Italy--History--19th century--Congresses.
Liberalism--Italy--History--20th century--Congresses.
Sonnino, Sidney, 1847-1922--Congresses.
Princeton subject headings:
Italy--Politics and government--19th century--Congresses.
Italy--Politics and government--20th century--Congresses.
Sonnino, Sidney, 1847-1922--Congresses.