Columbia subject headings:
Harvard subject headings:
Foreign trade and employment--United States.
Free trade--Mexico
Free trade--United States
Mexico--Commercial treaties.
Mexico--Foreign economic relations--United States.
Small business--United States.
United States--Commercial treaties.
United States--Foreign economic relations--Mexico.
Princeton subject headings:
Foreign trade and employment--United States.
Free trade--Mexico.
Free trade--United States.
Mexico--Commercial treaties.
Small business--United States.
United States--Commercial treaties.