Carta, KU# 6522-3, Project SLIDE, Skills for Learning Independence in Developmentally Appropriate Environments-An Outreach Training Project, April 1, 1997, Box: 10, Folder: 26. 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/452457 Accessed July 17, 2025.