Columbia subject headings:
Italy--Civilization--1789-1900.
Italy--Civilization--20th century.
Harvard subject headings:
Italy--Civilization--1789-1900.
Italy--Civilization--20th century.
Italy--History--19th century.
Italy--History--20th century.
Princeton subject headings:
Italy--Civilization.
Italy--History--19th century.
Italy--History--20th century.
Italy--Politics and government--1849-1870.
Italy--Politics and government--1870-1914.
Italy--Politics and government--20th century.