Columbia subject headings:
Architecture--Italy--Naples--Guidebooks.
Architecture--Italy--Naples--History--20th century--Guidebooks.
Naples (Italy)--Guidebooks.
Harvard subject headings:
Architecture, Modern--20th century--Italy--Naples--Guidebooks.
Architecture--Italy--Naples--Guidebooks.
Architecture--Italy--Naples--History--20th century--Guidebooks.
Architecture--Italy--Naples--History--Guidebooks.
Naples (Italy)--Guidebooks.
Princeton subject headings:
Architecture, Modern--20th century--Italy--Naples.
Architecture--Italy--Naples.
Naples (Italy)--Buildings, structures, etc.