Ramírez Acosta, R. d. J., & Castillo Ponce, R. A. (2009). Economic integration in North America: Learning from the experience of the European Union for the NAFTA. Universidad Autónoma de Baja California.

Ramírez Acosta, Ramón de Jesús, ja Ramón A. Castillo Ponce. Economic Integration in North America: Learning From the Experience of the European Union for the NAFTA. Universidad Autónoma de Baja California, 2009.

Ramírez Acosta, Ramón de Jesús, ja Ramón A. Castillo Ponce. Economic Integration in North America: Learning From the Experience of the European Union for the NAFTA. Universidad Autónoma de Baja California, 2009.