Columbia subject headings:
Barber, Samuel, 1910-1981.
Menotti, Gian Carlo, 1911-2007--Criticism and interpretation.
Harvard subject headings:
Barber, Samuel, 1910-1981
Menotti, Gian Carlo, 1911-2007
Menotti, Gian Carlo, 1911-2007--Criticism and interpretation.
Princeton subject headings:
Barber, Samuel, 1910-1981.
Menotti, Gian Carlo, 1911-2007--Criticism and interpretation.