Columbia subject headings:
Italy--Foreign relations.
Italy--History--1870-1914.
Tittoni, Tommaso, 1855-1931.
World War, 1914-1918--Causes.
Harvard subject headings:
Italy--Foreign relations.
Italy--History--1870-
World War, 1914-1918--Causes
Princeton subject headings:
Italy--Foreign relations.
Italy--History--1870-1914.
World War, 1914-1918--Causes.