Columbia subject headings:
Opera--Italy--Exhibitions.
Theaters--Stage-setting and scenery--Italy--Exhibitions.
Verdi, Giuseppe, 1813-1901--Exhibitions.
Verdi, Giuseppe, 1813-1901. Operas.
Harvard subject headings:
Opera--Italy--Exhibitions.
Theaters--Stage-setting and scenery--Italy--Exhibitions.
Verdi, Giuseppe, 1813-1901--Exhibitions.
Verdi, Giuseppe, 1813-1901. Operas.
Princeton subject headings: