Columbia subject headings:
Callas, Maria, 1923-1977--Criticism and interpretation.
Singers--Biography.
Harvard subject headings:
Callas, Maria, 1923-1977
Callas, Maria, 1923-1977--Criticism and interpretation.
Singers--Biography
Princeton subject headings:
Callas, Maria, 1923-1977--Criticism and interpretation.
Singers--Biography.