Helicopter Digest; A Magazine Dedicated to the Development of Helicopter, Jet-Propulsion and Private Flying. Hemlock, N.Y.: Crosset and Williams Publishing Co., June/July 1946

Helicopter Digest; A Magazine Dedicated to the Development of Helicopter, Jet-Propulsion and Private Flying. Hemlock, N.Y.: Crosset and Williams Publishing Co., June/July 1946, Volume: Gilbert D426. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526164 Accessed December 27, 2025.