Letter from Lawrence P. Ashmead of Doubleday Company, Inc. to P. Schuyler Miller, March 13, 1967, Box: 19, Folder: 1083. Papers of P. Schuyler Miller, MS 255. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/250103 Accessed May 19, 2024.