Heffner, Henry, Biomed, Psychobiology Computer System March 17, 1980-December 1, 1980, Box: 42, Folder: 12. 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/454036 Accessed May 17, 2025.