"Free Markets and Free Prices," testimony of N.J. Barbare before the Subcommittee of the Congressional Joint Committee for the Economic Report, October 20, 1947, Box: 24, Folder: 7. Frank A. Theis papers, RH MS 948. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/60888 Accessed July 19, 2025.