Columbia subject headings:
Italy--Politics and government--1815-1870--Congresses.
Verdi, Giuseppe, 1813-1901--Criticism and interpretation--Congresses.
Harvard subject headings:
Italy--Politics and government--1815-1870--Congresses.
Verdi, Giuseppe, 1813-1901--Criticism and interpretation--Congresses.
Princeton subject headings:
Italy--Politics and government--1815-1870--Congresses.
Verdi, Giuseppe, 1813-1901--Criticism and interpretation--Congresses.