Columbia subject headings:
Italy--Politics and government--1849-1870--Congresses.
Italy--Politics and government--1870-1914--Congresses.
Mario, Alberto, 1825-1883--Congresses.
Harvard subject headings:
Italy--Politics and government--1849-1870--Congresses.
Italy--Politics and government--1870-1914--Congresses.
Mario, Alberto, 1825-1883--Congresses.
Princeton subject headings:
Italy--Politics and government--1849-1870--Congresses.
Italy--Politics and government--1870-1914--Congresses.
Mario, Alberto, 1825-1883--Congresses.