Diedrich, Training Speech Clinicians in the Recording and Analysis of Articulatory Behavior, OEG-0-9-261293-3406 (031), December 29, 1972, Box: 25, Folder: 8. 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/452917 Accessed May 19, 2025.