Teacher and Parent Perspectives on Selected Social Aspects of Preschool Mainstreaming, Blacher and A. Turnbull in The Exceptional Child, Volume 29, Number 3, November 1982, Box: 1, Folder: 81. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/304834 Accessed June 16, 2025.