Program Project, Application, Progress Report 5P01 HD00870-06, Submitted, July 2, 1968, Box: 61, Folder: 27. 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/455414 Accessed May 24, 2025.