Columbia subject headings:
Industrialization--Europe--History--19th century.
Industrialization--Italy--History--19th century.
Urbanization--Europe--History--19th century.
Urbanization--Italy--History--19th century.
Harvard subject headings:
Cities and towns--Italy--History
Urbanization--Europe--History
Urbanization--Italy--History.
Princeton subject headings:
Cities and towns--Italy--History.
Urbanization--Europe--History.
Urbanization--Italy--History.