ProgramBooklet, 18th World Science Fiction Convention; PittCon Progress Reports 1-3; SeaCon Progress Reports 1-4; SeaCon Program Book; 20th World Science Fiction Convention Progress Report 2 4, Box: 2, Folder: 30. Papers of P. Schuyler Miller, MS 255. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/248962 Accessed May 06, 2024.