Columbia subject headings:
Agriculture--Italy--History.
Agriculture--Italy--Naples (Kingdom)--History.
Naples (Kingdom)--History--1735-1816.
Harvard subject headings:
Agriculture--Italy--History
Agriculture--Italy--Naples (Kingdom)--History.
Agriculture--Kingdom of the Two Sicilies--History.
Kingdom of the Two Sicilies--History--1816-1861
Naples (Kingdom)--History--1735-1816
Princeton subject headings: