Investigacao sobe queda de producao em Morro Velho e Raposos,, 1948

Investigacao sobe queda de producao em Morro Velho e Raposos,, 1948, Box: 143, Folder: 2. 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/345489 Accessed September 26, 2026.