Columbia subject headings:
Opera--Italy--Parma--History.
Teatro Farnese (Parma, Italy)--History.
Theaters--Italy--Parma--History.
Harvard subject headings:
Opera--Italy--Parma--History.
Opera--Italy--Parma.
Teatro Farnese (Parma, Italy)--History.
Theaters--Italy--Parma--History.
Princeton subject headings:
Opera--Italy--Parma--History.
Teatro Farnese (Parma, Italy)--History.
Theaters--Italy--Parma--History.