Fixen, Teaching-Parent Training Program, MH13644-01, Expenditures Report, July 1, 1973-June 30, 1974, Box: 28, Folder: 40. 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/453067 Accessed July 18, 2025.