Columbia subject headings:
Mexico--Economic conditions.
Mexico--Foreign economic relations.
Harvard subject headings:
Education--Economic aspects--Mexico--Congresses.
International economic integration--Congresses.
Mexico--Commercial policy--Congresses.
Mexico--Foreign economic relations--Congresses.
North America--Economic integration--Congresses.
Princeton subject headings:
Education--Economic aspects--Mexico--Congresses.
International economic integration--Congresses.
Mexico--Commercial policy--Congresses.
Mexico--Foreign economic relations--Congresses.
North America--Economic integration--Congresses.