Norwick, Kenneth P. Censorship. New York: Playboy Foundation Inc., 1974

Norwick, Kenneth P. Censorship. New York: Playboy Foundation Inc., 1974, Box: 7, Volume: 8. Midwest Distributors records, RH MS 949. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/574288 Accessed December 24, 2025.