Columbia subject headings:
Teatro Amilcare Ponchielli.
Theater architecture--Italy--Cremona.
Theaters--Conservation and restoration--Italy.
Harvard subject headings:
Teatro Amilcare Ponchielli.
Theater architecture--Italy--Cremona.
Theaters--Italy--Conservation and restoration.
Princeton subject headings:
Cremona (Italy)--Buildings, structures, etc.
Teatro communale "A. Ponchielli" (Cremona, Italy)
Theaters--Italy--Cremona--Conservation and restoration.