Columbia subject headings:
Concertos (Piano)--Scores.
Gershwin, George, 1898-1937--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Harvard subject headings:
Concertos (Piano)--Scores.
Gershwin, George, 1898-1937--Manuscripts--Facsimiles.
Music--Manuscripts--Facsimiles.
Princeton subject headings: