Report on history, geology and mineral resources of St. John d'el Rey Mining Co. Ltd.

Report on history, geology and mineral resources of St. John d'el Rey Mining Co. Ltd., Box: 146, Folder: 7. Saint John d'El Rey Mining Company Records, 1984-12. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/346951 Accessed September 26, 2026.