RYAVEC, K. E.; HENDERSON, M. Research Report—"Mapping Political Economies Over Time: Teaching Regional Systems Theory With G.W. Skinner’s Historical GIS Datasets”. Journal of World-Systems Research, [S. l.], v. 24, n. 2, p. 435–443, 2018. DOI: 10.5195/jwsr.2018.872. Disponível em: https://jwsr.pitt.edu/ojs/jwsr/article/view/872. Acesso em: 30 may. 2024.