J. Langston, «Kathleen Bruhn, Taking on Goliath: The Emergence of a New Left Party and the Struggle for Democracy in México, Pensilvania, 1997»., PyG, vol. 4, n.º 2, pp. 574–576, abr. 1997, Accedido: oct. 13, 2026. Disponible en: http://www.politicaygobierno.cide.edu/index.php/pyg/article/view/539