U.S. House of Representatives Select Committee on Children, Youth, and Families: Families with Children Having Disabilities: Issues for the Eighties, April 1985, Box: 14, Folder: 58. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305347 Accessed June 23, 2025.