American Aviation traffic guide; an American Aviation Publication. Washington, D.C.: American Aviation Associates, Inc., October 1944

American Aviation traffic guide; an American Aviation Publication. Washington, D.C.: American Aviation Associates, Inc., October 1944, Volume: Gilbert D42. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525135 Accessed December 27, 2025.