Harrison - The Man From P.I.G. (1967), [The Man From] R.O.B.O.T. (1972), Montezuma's Revenge (1971), Box: 9, 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/230232 Accessed May 01, 2024.