Achievement Place, Behavior Modification with Pre-Delinquents, MH 16609, Final Report, January 1969-April 1971, Box: 1A, Folder: 8. 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/452225 Accessed May 26, 2024.