BCD [Beach Center on Disability] - NIDRR [National Institute on Disability and Rehabilitation Research] - State of Science, March 14, 2008, Box: 12, Folder: 42. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305277 Accessed June 19, 2025.