Columbia subject headings:
Ballet--Italy--Naples.
Naples (Italy)--History.
Operas--Italy--Naples.
Teatro di San Carlo--History.
Harvard subject headings:
Ballet--Italy--Naples.
Naples (Italy)--History.
Opera--Italy--Naples.
Teatro di San Carlo--History.
Teatro di San Carlo.
Princeton subject headings:
Ballet--Italy--Naples.
Naples (Italy)--History.
Opera--Italy--Naples.
Teatro di San Carlo--History.