Columbia subject headings:
Free trade--America.
Latin America--Foreign economic relations--United States.
United States--Foreign economic relations--Latin America.
Harvard subject headings:
America--Commerce.
America--Economic integration.
Free trade--America
Latin America--Foreign economic relations--United States.
United States--Foreign economic relations--Latin America.
Princeton subject headings:
Free trade--America.
Latin America--Foreign economic relations--United States.
United States--Foreign economic relations--Latin America.