Columbia subject headings:
Bartók, Béla, 1881-1945--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Musical sketches.
Harvard subject headings:
Bartók, Béla, 1881-1945--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Musical sketches.
Princeton subject headings:
Bartók, Béla, 1881-1945--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Musical sketches.