Johnson, Robert, Non-Directed Demonstration Project for Severely Handicapped Children and Youth: Chronic Aberrant Behavior Project, KU# 4415, February, 19, 1987, Box: 44a, Folder: 20. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/454142 Accessed July 14, 2025.