D, The Magazine of Dallas. Dallas, Texas: Dallas Southwest Media Corporation, October 1974

D, The Magazine of Dallas. Dallas, Texas: Dallas Southwest Media Corporation, October 1974, Volume: Gilbert D252. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525713 Accessed December 28, 2025.