International Association of Oil, Gas and Refinery Workers, 1925, 1929

International Association of Oil, Gas and Refinery Workers, 1925, 1929, Box: 5, Folder: 3. Clemente N. Idar Papers, 2005-12. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/448788 Accessed September 26, 2026.