Columbia subject headings:
Harvard subject headings:
Italy--History--1789-1900.
Italy--History--18th century.
Italy--Politics and government--1789-1870.
Italy--Politics and government--18th century.
Princeton subject headings:
Italy--History--1789-1900.
Italy--History--18th century.
Italy--Politics and government--1789-1870.
Italy--Politics and government--18th century.