Lent, Jim, Curriculum Development, GOO7500668, Progress Report, Submitted, January 26, 1976, Box: 47, Folder: 31. 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/454231 Accessed July 17, 2025.