Columbia subject headings:
Callas, Maria, 1923-1977.
Sopranos (Singers)--Biography.
Harvard subject headings:
Callas, Maria, 1923-1977
Callas, Maria, 1923-1977--Childhood and youth.
Sopranos (Singers)--Biography
Princeton subject headings:
Callas, Maria, 1923-1977.
Sopranos (Singers)--Biography.