Fixen, Teaching-Parent Training Program, 1T21MH13644-01, 2472/1836-2, July 1, 1974-June 30, 1975, Box: 28, Folder: 42. 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/453069 Accessed May 19, 2025.