Columbia subject headings:
Harvard subject headings:
Italy--History--1870-1914--Congresses.
Italy--History--1914-1922--Congresses.
Puglia (Italy)--History--Congresses.
Princeton subject headings:
Italy--History--1914-1922--Congresses.
Italy--Politics and government--1914-1922--Congresses.
World War, 1914-1918--Italy--Congresses.