Check; Selected Reading From All Sources. Concord. N.H.: The Eastern Publishing Company, March 1951

Check; Selected Reading From All Sources. Concord. N.H.: The Eastern Publishing Company, March 1951, Volume: Gilbert B51. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525477 Accessed December 26, 2025.