Columbia subject headings:
Harvard subject headings:
Biblioteca nazionale centrale di Roma--History--Congresses.
Bonghi, Ruggiero, 1826-1895--Congresses.
Intellectuals--Italy--Biography--Congresses.
Italy--Politics and government--1870-1914--Congresses.
Politicians--Italy--Biography--Congresses.
Princeton subject headings:
Biblioteca nazionale centrale di Roma--History--Congresses.
Bonghi, Ruggiero, 1826-1895--Congresses.
Italy--Politics and government--1870-1914--Congresses.