LEITNER, J. The Political Economy of Raw Materials Transport from Internal Periphery to Core in the Early 20th Century US: The Calumet & Hecla Copper Company?s Struggle for Market Access, 1922?39. Journal of World-Systems Research, [S. l.], v. 10, n. 2, p. 397–435, 2004. DOI: 10.5195/jwsr.2004.294. Disponível em: https://jwsr.pitt.edu/ojs/jwsr/article/view/294. Acesso em: 28 mar. 2024.