Public Policy and Outcomes for Persons with Intellectual Disability, Shogren and H.R. Turnbull in Intellectual and Developmental Disabilities, Volume 48, Number 5, October 2010, Box: 2, Folder: 32. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/304918 Accessed June 25, 2025.