Columbia subject headings:
Libretto.
Piave, Francesco Maria, 1810-1876--Criticism and interpretation.
Verdi, Giuseppe, 1813-1901--Friends and associates.
Harvard subject headings:
Librettists--Italy--Biography.
Piave, Francesco Maria, 1810-1876--Criticism and interpretation.
Verdi, Giuseppe, 1813-1901--Friends and associates.
Princeton subject headings:
Libretto.
Piave, Francesco Maria, 1810-1876--Criticism and interpretation.
Verdi, Giuseppe, 1813-1901--Friends and associates.