Columbia subject headings:
Italy--Politics and government--1870-1914--Congresses.
Laicism--Italy--20th century--Congresses.
Harvard subject headings:
Italy--Politics and government--1870-1914--Congresses.
Laicism--Italy--20th century--Congresses.
Princeton subject headings:
Italy--Politics and government--1870-1914.
Laicism--Italy--History--19th century.
Laicism--Italy--History--20th century.