"Interamericanismo democrático sin imperio" and Trampolín: revista supra-cosmopolita (various authors including Portal), 1926

"Interamericanismo democrático sin imperio" and Trampolín: revista supra-cosmopolita (various authors including Portal), 1926, Box: 13, Folder: 15. Magda Portal Papers, 44071674. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/454079 Accessed September 26, 2026.