Columbia subject headings:
City planning--Italy--Procida Island.
Procida Island (Italy)--Buildings, structures, etc.
Procida Island (Italy)--History.
Harvard subject headings:
Architecture--Italy--Procida Island.
City planning--Italy--Procida Island.
Historic buildings--Italy--Procida Island.
Procida Island (Italy)--History.
Princeton subject headings:
City planning--Italy--Procida Island.
Procida Island (Italy)--Buildings, structures, etc.
Procida Island (Italy)--History.