Heider's Formulation of Social Perception and Attributional Processes: Toward Further Clarification by Gifford Weary, Marvina C. Rich, John H. Harvey, and William J. Ickes, Box: 39, Folder: 51. Personal papers of Fritz Heider, PP 343. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/122587 Accessed June 01, 2024.