Laumer - Retief of the C.D.T. (1969, 1971), Diplomat at Arms (1981), Ambassador to Space (1987), Box: 12, Folder: 15. 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/230351 Accessed May 03, 2024.