Guess, Doug, RFP 78-10, Project Learn, Submitted, March, 1978, Box: 38, Folder: 14. 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/453922 Accessed May 20, 2025.