Pinilla Cañón, Eylenth Andrea. “The Regularization of Mining in the Pan-American Hemisphere before and After World War II”. Cambios y permanencias 12, no. 1 (June 30, 2021): 806–838. Accessed July 22, 2024. https://revistas.uis.edu.co/index.php/revistacyp/article/view/12406.