Columbia subject headings:
Foreign trade regulation--United States.
Free trade--United States.
World Trade Organization--Rules and practice.
World Trade Organization--United States.
Harvard subject headings:
Foreign trade regulation--United States.
Free trade--United States
World Trade Organization--Rules and practice.
World Trade Organization--United States.
Princeton subject headings:
Foreign trade regulation--United States.
Free trade--United States.
World Trade Organization--Rules and practice.
World Trade Organization--United States.