United Comics; Fritzi Ritz. New York: N.Y.: United Feature Syndicate, Inc., August 1940

United Comics; Fritzi Ritz. New York: N.Y.: United Feature Syndicate, Inc., August 1940, Volume: Gilbert D368. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527906 Accessed December 28, 2025.