Hall, R. Vance, Research on the Development of Culturally Deprived Children, Back from PHS, 4168, HD 03144-06, Submitted, December 23, 1971, Box: 39, Folder: 9. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/453944 Accessed July 17, 2025.