Columbia subject headings:
Harvard subject headings:
Italy--Politics and government--1870-
Socialism--Italy--Congresses
Socialism--Italy--History--Congresses.
Turati, Filippo, 1857-1932--Congresses.
Princeton subject headings:
Italy--Politics and government--1870-
Socialism--Italy--History--Congresses.
Turati, Filippo, 1857-1932--Congresses.