Culver, William C., y Cornel Reinhart. «The Douglas Report: Chilean Mining and Its Political Representation in 1871». Si Somos Americanos. Revista de Estudios Transfronterizos 4, no. 3 (abril 11, 2018): 79-102. Accedido mayo 3, 2024. https://sisomosamericanos.cl/index.php/sisomosamericanos/article/view/795.