Nacif, Benito. “Keith Khrebel, Pivotal Politics: A Theory of US Lawmaking, Chicago University Press, 258 P”. Política y gobierno 9, no. 1 (April 15, 2002): 270–273. Accessed October 13, 2026. http://politicaygobierno.cide.edu/index.php/pyg/article/view/383.