World Digest; The Best Thought of the Month the World Over. New York: World Digest Publishing Company, November 1933

World Digest; The Best Thought of the Month the World Over. New York: World Digest Publishing Company, November 1933, Volume: Gilbert B314. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/528082 Accessed December 26, 2025.