Columbia subject headings:
Harvard subject headings:
Italy--Foreign relations--1870-1914.
Nationalism--Europe--History--19th century--Congresses.
Nationalism--Europe--History--20th century--Congresses.
Nationalism--Italy--History--19th century--Congresses.
Nationalism--Italy--History--20th century--Congresses.
Princeton subject headings:
Nationalism--Europe--History--19th century--Congresses.
Nationalism--Europe--History--20th century--Congresses.
Nationalism--Italy--History--19th century--Congresses.
Nationalism--Italy--History--20th century--Congresses.