Columbia subject headings:
Harvard subject headings:
Benco, Silvio, 1874-1949. Falena.
Elia, Enrico, 1891-1915--Manuscripts--Facsimiles.
Libretto.
Smareglia, Antonio, 1854-1929. Falena.
Princeton subject headings:
Benco, Silvio, 1874-1949--Criticism and interpretation.
Elia, Enrico, 1891-1915--Manuscripts.
Facsimiles.
Librettos.
Manuscripts--Facsimiles.
Operas--Librettos.
Smareglia, Antonio, 1854-1929. Falena.