Magazines/Booklets: The Modotti, Approaching Calamity, Case History, July 1936, History of the Communist Party of the Soviet Union Fourth International, May-June 1951, Fourth International, July-August 1951, Box: 4, Folder: 10. Leo Gallagher papers, RH WL MS 17. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/15744 Accessed May 19, 2024.