Columbia subject headings:
Operas--Librettos.
Verdi, Giuseppe, 1813-1901. Otello.
Harvard subject headings:
Librettos.
Operas--Librettos
Othello (Fictitious character from Shakespeare)--Drama.
Verdi, Giuseppe, 1813-1901. Otello
Princeton subject headings:
Librettos.
Opera.
Operas--Librettos.
Verdi, Giuseppe, 1813-1901. Otello.