Columbia subject headings:
Free trade--Mexico.
Free trade--North America.
Mexico--Foreign economic relations--North America.
North America--Commercial policy.
North America--Economic integration.
United States-Mexico-Canada Agreement
Harvard subject headings:
Free trade--Mexico
Free trade--North America
Mexico--Foreign economic relations--North America.
North America--Commercial policy.
North America--Economic integration
United States-Mexico-Canada Agreement
Princeton subject headings:
Economic policy.
Mexico--Economic policy--21st century.
Mexico--Foreign relations--Canada--21st century.
Mexico--Foreign relations--United States--21st century.