Slide Box 4 - Scandinavia II, 1967, cont'd; Switzerland/Italy, 1971 (Peterson Box 4 cont'd, 5), Box: 1, Box: 4. John and Frances Peterson collection, RH MS 1330. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/195537 Accessed May 17, 2024.