Popular Crossword Puzzles. New York: Better Publications, Inc., Winter 1941

Popular Crossword Puzzles. New York: Better Publications, Inc., Winter 1941, Volume: Gilbert C386. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527100 Accessed December 26, 2025.