The AOPA Pilot: Official Magazine of the Aircraft Owners and Pilots Association. Bethesda, Md. Aircraft Owners and Pilots Association, March 1958

The AOPA Pilot: Official Magazine of the Aircraft Owners and Pilots Association. Bethesda, Md. Aircraft Owners and Pilots Association, March 1958, Volume: Gilbert D3. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525025 Accessed December 27, 2025.