Escudero, Antonio. “The Hegemony of the Steel Industry of Vizcaya: A Cost Analysis (1890-1913)”. Revista de Historia Industrial — Industrial History Review 1, no. 28 (July 20, 2017): 47–79. Accessed May 1, 2024. https://revistes.ub.edu/index.php/HistoriaIndustrial/article/view/19571.