Columbia subject headings:
Ansermet, Ernest, 1883-1969.
Composers--Hungary--Biography.
Composers--Hungary--Correspondence.
Kodály, Zoltán, 1882-1967.
Harvard subject headings:
Ansermet, Ernest, 1883-1969.
Composers--Hungary--Biography
Composers--Hungary--Correspondence.
Kodály, Zoltán, 1882-1967
Princeton subject headings:
Ansermet, Ernest, 1883-1969.
Composers--Hungary--Biography.
Composers--Hungary--Correspondence.
Kodály, Zoltán, 1882-1967.