Wings; For Victory in the Battle Of Production. New York: McGraw-Hill Publishing Co., Inc., June 1942

Wings; For Victory in the Battle Of Production. New York: McGraw-Hill Publishing Co., Inc., June 1942, Volume: Gilbert D1199. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/528056 Accessed December 27, 2025.