Cyril Kornbluth and Judith Merril - Gunner Cade (1974, 1975, 1979, 1980), Box: 11, Folder: 36. 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/229749 Accessed May 07, 2024.