International Encyclopedia of Neurology, Psychiatry, Psychoanalysis and Psychology article by RS entitled Speech and language: developmental disabilities

International Encyclopedia of Neurology, Psychiatry, Psychoanalysis and Psychology article by RS entitled Speech and language: developmental disabilities, Box: 2, Folder: 28. Personal Papers of Richard Schiefelbusch, PP 458. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/266157 Accessed December 25, 2025.