Columbia subject headings:
Mexico--Economic conditions--1982-1994.
Mexico--Foreign economic relations--United States.
Mexico--Politics and government--1970-1988.
United States--Foreign economic relations--Mexico.
Harvard subject headings:
Mexico--Economic conditions--1982-1994.
Mexico--Economic conditions--1994-
Mexico--Foreign economic relations--United States.
Mexico--Politics and government--1970-
Mexico--Politics and government--1970-1988.
Mexico--Politics and government--1988-
United States--Foreign economic relations--Mexico.
Princeton subject headings: