M. Studer, “Seymour Martin Lipset, The continental divide . The values ??and institutions of the United States and Canada, México, Fondo de Cultura Económica, 1993, 321 p”., PyG, vol. 1, no. 2, pp. 430–433, Apr. 1994, Accessed: Oct. 13, 2026. Available: http://politicaygobierno.cide.edu/index.php/pyg/article/view/615