Soto Montes de Oca G. Robert A. Pastor, Integration with Mexico. Options for U.S. Policy, Nueva York, The Twenty Century Fund Press, 1993, 133 p . PyG [Internet]. 1994 Apr. 21 [cited 2026 Oct. 13];1(2):445-7. Available from: http://politicaygobierno.cide.edu/index.php/pyg/article/view/620