Columbia subject headings:
Milhaud, Darius, 1892-1974--Operas.
Opera--France--20th century.
Harvard subject headings:
Milhaud, Darius, 1892-1974. Operas.
Opera--France--20th century.
Princeton subject headings:
Milhaud, Darius, 1892-1974--Operas.
Opera--France--20th century.