Franson, Donald. A History of the Hugo, Nebula, and International Fantasy Awards. Dearborn, MI, Misfit Press, 1978, Box: 18, Folder: 6. Papers of Theodore Sturgeon, MS 254. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/244063 Accessed May 14, 2024.