Columbia subject headings:
Harvard subject headings:
Bridges--Italy, Southern--Design and construction--History.
Civil engineering--Italy, Southern--History--17th century.
Civil engineering--Italy, Southern--History--18th century.
Highway engineering--Italy, Southern--History.
Princeton subject headings:
Civil engineers--Italy, Southern--History--18th century.
Civil engineers--Italy, Southern--History--19th century.
Civil engineers--Italy, Southern--Social conditions.