Columbia subject headings:
Free trade--North America.
Mexico--Foreign economic relations--United States.
Mexico--Politics and government--1988-2000.
Mexico--Relations--North America.
United States--Foreign economic relations--Mexico.
Harvard subject headings:
Canada--Foreign economic relations--Mexico.
Canada. Treaties, etc. 1992 October 7.
Free trade--North America
Mexico--Foreign economic relations--Canada.
Mexico--Foreign economic relations--United States.
North American Free Trade Agreement
United States--Foreign economic relations--Mexico.
Princeton subject headings:
Canada--Foreign economic relations--Mexico.
Free trade--North America.
Mexico--Foreign economic relations--Canada.
Mexico--Foreign economic relations--United States.
North American Free Trade Agreement
United States--Foreign economic relations--Mexico.