The Open Letter. Pleasantville, N.Y.: The Reader's Digest Association, Inc., August 1939

The Open Letter. Pleasantville, N.Y.: The Reader's Digest Association, Inc., August 1939, Volume: Gilbert Q163. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526930 Accessed December 27, 2025.