Perspectives of Five Stakeholder Groups: Challenging Behavior of Individuals with Mental Retardation and/or Autism, Ruef, A. Turnbull, H.R. Turnbull, Poston in Journal of Positive Behavior Interventions, Volume 1, Number 1, Winter 1999

Perspectives of Five Stakeholder Groups: Challenging Behavior of Individuals with Mental Retardation and/or Autism, Ruef, A. Turnbull, H.R. Turnbull, Poston in Journal of Positive Behavior Interventions, Volume 1, Number 1, Winter 1999, Box: 2, Folder: 116. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305002 Accessed December 25, 2025.