O'Brien, Marion, Parental Attributions and Children's Social Cognitive Development, KU# 13701, June 1, 1996, Box: 54, Folder: 3. 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/455193 Accessed May 24, 2025.