Gershwin, George, "Concerto in F for Piano and Orchestra," New York, Harms, 1st and 2nd piano parts [printed with handwritten notations], 1927, Box: 1, Folder: 3. Louis and Henry Manners Katzman collection, MS 156. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/415806 Accessed April 29, 2024.