Summer Sessions at KU, Visiting Professor on Other Campuses, Long Range Planning, Chicago University Notes and Papers, Loren Eisley Correspondence, 1923 - 1969, Box: 4. Personal papers of Carroll D. Clark, PP 1. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/749 Accessed June 09, 2023.