Robert Thomas - Work on Harlem (1964), Ted Thomas - The Clone (1967, 1979), Raymond Tapar - The Royal Crown of the Czars (1979), Box: 22, Folder: 20. Corporate Papers of the Robert Mills Literary Agency, MS 307. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/230697 Accessed May 07, 2024.