Columbia subject headings:
Composers--Correspondence.
Stravinsky, Igor, 1882-1971.
Harvard subject headings:
Composers--Correspondence
Personal correspondence
Stravinsky, Igor, 1882-1971
Stravinsky, Igor, 1882-1971--Correspondence.
Princeton subject headings:
Composers--Correspondence.
Stravinsky, Igor, 1882-1971.