Simak - Cemetery World (1973), And the Truth Shall Make Ye Free (1971), Auk House (1977), Autobiographical Material (1977), Box: 19, Folder: 57. 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/230609 Accessed May 22, 2024.