Hussain I. Louise Fawcett y Andrew Hurrell (eds.), Regionalism in World Politics: Regional Organization and International Order, Oxford, England, Oxford University Press, 1995, p.342. PyG. 1998;5(1):300-302. Accedido octubre 13, 2026. http://politicaygobierno.cide.edu/index.php/pyg/article/view/520