Referencias:
Johnson Jon R., “The Art of Breaking the Deal: What President Trump Can and Can’t Do About NAFTA”, Trade and International Policy, Estados Unidos, C.D. Howe Institute, núm. 464, enero de 2017.
Villarreal M. Ángeles y Fergusson Ian F., “The North American Free Trade Agreement (NAFTA)”, Congressional Research Service, Estados Unidos, 24 de mayo de 2017, pp. 24-32.