Verdu, Alfonso; El Problema...En China, 1961

Verdu, Alfonso; El Problema...En China, 1961, Box: 12, Folder: 38. Personal papers of Richard T. De George, PP 531. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/315328 Accessed December 25, 2025.