Espídola Mata, Juan. “John C. Cross, Informal Politics, Street Vendors and the State in Mexico City, Stanford, Stanford University Press, 1998, 272 P”. Política Y Gobierno, vol. 8, no. 1, Apr. 2001, pp. 232-4, http://politicaygobierno.cide.edu/index.php/pyg/article/view/407.