International Design Conference in Aspen: Conference materials as distributed, with some MS annotations, and MS memoranda laid in, 1964; 1966; 1968; 1973; 1974, Box: 21, Folder: 6.7-9. Papers of Curtis Wray Besinger, MS 241. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/386137 Accessed May 02, 2024.