Extra. New York, N.Y.: D.S. Publishing Company, Inc., May 1950

Extra. New York, N.Y.: D.S. Publishing Company, Inc., May 1950, Volume: Gilbert E86. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525878 Accessed December 26, 2025.