Columbia subject headings:
Conductors (Music)--Correspondence.
Munch, Charles, 1891-1968--Correspondence.
Harvard subject headings:
Conductors (Music)--Correspondence.
Munch, Charles, 1891-1968--Correspondence.
Princeton subject headings:
Conductors (Music)--Correspondence.
Munch, Charles, 1891-1968--Correspondence.