President's task force report; miscellaneous correspondence, 1963-65, 1971, 1976, 1977 & 1986-87, Box: 14, Folder: 1. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154052 Accessed June 24, 2024.