Gershwin, George, "Rhapsody in Blue," New York, Harms [score; printed with handwritten notations], 1925, Box: 2, Folder: A: 70-71. Louis and Henry Manners Katzman collection, MS 156. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/416039 Accessed May 07, 2024.