Oskaloosa Household Data Sheets, 1956, 1957, 1958, 1959, 1960, 1962, 1964, Box: 11. Midwest Psychological Field Station records, RG 17/66. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/131618 Accessed November 23, 2024.