CRU Nos. 1-96, Parsons Research Center Reports 1-7, Speech and Hearing 1-14, 1965 - 1973, Box: 7. 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/455857 Accessed May 19, 2025.