Keracher, John. The Head-Fixing Industry. Illinois: Charles H. Kerr Publishing Company, 1955

Keracher, John. The Head-Fixing Industry. Illinois: Charles H. Kerr Publishing Company, 1955, Box: 3, Volume: 50. Midwest Distributors records, RH MS 949. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/574026 Accessed March 11, 2026.