Puzzle Pages and Contest Bulletin. New York: Puzzle Pages, Inc., March 1937

Puzzle Pages and Contest Bulletin. New York: Puzzle Pages, Inc., March 1937, Volume: Gilbert Q207. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527173 Accessed December 26, 2025.