Columbia subject headings:
Architecture--Italy--Calabria--History.
Architecture--Italy--Campania--History.
Calabria (Italy)--Buildings, structures, etc.
Campania (Italy)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Italy--Calabria--History.
Architecture--Italy--Campania--History.
Princeton subject headings:
Architecture--Italy--Calabria--History.
Architecture--Italy--Campania--History.