Harrison - Spaceship Medic (1968), The Stainless Steel Rat (1961, 1969), Saves the World (1970), Box: 9, Folder: 26. 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/230243 Accessed May 16, 2024.