Columbia subject headings:
Boito, Arrigo, 1842-1918--Exhibitions.
Costume--Italy--Milan--Exhibitions.
Opera--Italy--History--19th century--Sources--Exhibitions.
Opera--Stage-setting and scenery--Italy--Milan--Exhibitions.
Verdi, Giuseppe, 1813-1901--Correspondence--Exhibitions.
Verdi, Giuseppe, 1813-1901. Otello--Exhibitions.
Harvard subject headings:
Boito, Arrigo, 1842-1918--Exhibitions.
Costume--Italy--Milan--Exhibitions.
Opera--Italy--History--19th century--Sources--Exhibitions.
Opera--Stage-setting and scenery--Italy--Milan--Exhibitions.
Verdi, Giuseppe, 1813-1901. Correspondence
Verdi, Giuseppe, 1813-1901. Otello--Exhibitions.
Princeton subject headings:
Boito, Arrigo, 1842-1918--Exhibitions.
Costume--Italy--Milan--Exhibitions.
Opera--Italy--History--19th century--Sources--Exhibitions.
Opera--Stage-setting and scenery--Italy--Milan--Exhibitions.
Verdi, Giuseppe, 1813-1901--Correspondence--Exhibitions.
Verdi, Giuseppe, 1813-1901. Otello--Exhibitions.