Knockout Magazine. Chicago, Ill.: Popular Publications, Inc., January/February 1937

Knockout Magazine. Chicago, Ill.: Popular Publications, Inc., January/February 1937, Volume: Gilbert C271. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526382 Accessed March 22, 2026.