Future Planning in Making Transitions Across the Life-Span: Point-Counterpoint Forum, A. Turnbull and H.R. Turnbull, Box: 14, Folder: 38. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305326 Accessed June 21, 2025.