Columbia subject headings:
Mexico--Economic conditions--1994-
Mexico--Foreign economic relations.
Mexico--Foreign relations--1988-2000.
Mexico--Politics and government--1988-2000.
Harvard subject headings:
Mexico--Economic conditions--1994-
Mexico--Foreign economic relations.
Mexico--Foreign relations--1988-2000.
Mexico--Politics and government--1988-
Princeton subject headings:
Mexico--Economic conditions--1994-
Mexico--Foreign economic relations.
Mexico--Foreign relations--1988-2000.
Mexico--Politics and government--1988-2000.