Columbia subject headings:
Operas--Librettos.
Operas--Scores.
Pompey, the Great, 106 B.C.-48 B.C.--Drama.
Harvard subject headings:
Operas--Librettos
Operas--Scores
Pompey, the Great, 106 B.C.-48 B.C.--Drama.
Princeton subject headings:
Operas--Librettos.
Operas--Scores.
Operas.
Pompey, the Great, 106 B.C.-48 B.C.--Drama.
Scores.