Captain Combat, Super Ace. Chicago: Fictioneers, Inc., April 1940

Captain Combat, Super Ace. Chicago: Fictioneers, Inc., April 1940, Volume: Gilbert C93. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525453 Accessed March 23, 2026.