Ramp, Eugene, Follow Through Project (ESA), KU# 6234, June 17, 1991, Box: 63, Folder: 21. 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/455494 Accessed June 26, 2024.