Kornbluth - The Best of CM Kornbluth (1977), Outpost Mars (1980, 1977, 1966), Not This August (1980), Box: 11, Folder: 48. 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/230330 Accessed November 23, 2024.