Ashton-Lilo, Jennifer, Peed Project, Modules, Final Report, April , 1981, Box: 3A, Folder: 25. 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/452318 Accessed June 02, 2024.