Columbia subject headings:
Harvard subject headings:
Italy--History--1815-1870--Congresses.
Italy--History--1870-1914--Congresses.
Stella, Quintino, 1827-1884--Congresses.
Princeton subject headings:
Italy--Politics and government--19th century--Congresses.
Sella, Quintino, 1827-1884--Congresses.