Columbia subject headings:
Foreign trade regulation--North America--Congresses.
Free trade--North America--Congresses.
North America--Economic integration--Congresses.
North American Free Trade Agreement--Congresses.
Harvard subject headings:
Princeton subject headings:
Canada. Treaties, etc. 1992 Oct. 7--Congresses.
Foreign trade regulation--North America--Congresses.
Free trade--Mexico--Congresses.
Free trade--North America--Congresses.
Free trade--United States.
North America--Economic integration--Congresses.