10-Story Detective. Springfield, Mass.: Periodical House, Inc., January 1938

10-Story Detective. Springfield, Mass.: Periodical House, Inc., January 1938, Volume: Gilbert C515. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527703 Accessed December 27, 2025.