Deca-Gram. Fort Worth, Texas: unknown publisher, February 28, 1963

Deca-Gram. Fort Worth, Texas: unknown publisher, February 28, 1963, Volume: Gilbert D256. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525733 Accessed December 28, 2025.