Overview of Five Proposals for Collaboration on Policy in Autism, H.R. Turnbull and A. Turnbull, July 2008, Box: 13, Folder: 11. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305286 Accessed June 20, 2025.