Grofé, Ferde, "Metropolis: A Fantasie in Blue," New York, Robbins [for piano; printed with handwritten notations], 1928, Box: 2, Folder: A: 90. Louis and Henry Manners Katzman collection, MS 156. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/416058 Accessed May 19, 2024.