Center Training, HD-07066-01, Mental Retardation and Other Developmental disabilities, Submitted January 28, , 1977, Box: 11, Folder: 38. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/452506 Accessed July 17, 2025.