Core Grant, MRRC, KU # 4060, Miscellaneous, Specifications for Listening Laboratory Equipment, Installation, and Service, Lingwall, December, , 1968, Box: 18B, Folder: 28. 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/452746 Accessed May 18, 2025.