Columbia subject headings:
Harvard subject headings:
Europe--History--1871-1918.
Europe--History--1918-1945.
Italy--History--1870-1914.
Italy--History--1914-1945.
Princeton subject headings:
Europe--History--1871-1918.
Europe--History--1918-1945.
Italy--History--1870-1914.
Italy--History--1914-1945.