Columbia subject headings:
Composers--Austria--Correspondence.
Music publishers--Austria--Correspondence.
Musikverlag Doblinger (Vienna, Austria)
Wellesz, Egon, 1885-1974--Correspondence.
Harvard subject headings:
Composers--Austria--Correspondence
Ludwig Doblinger (Firm)
Music publishers--Austria--Correspondence.
Musikverlag Doblinger (Vienna, Austria)
Wellesz, Egon, 1885-1974--Correspondence.
Princeton subject headings:
Composers--Austria--Correspondence.
Music publishers--Austria--Correspondence.
Musikverlag Doblinger (Vienna, Austria)
Wellesz, Egon, 1885-1974--Correspondence.