Columbia subject headings:
Mexico--Economic conditions--1982-1994.
Mexico--Politics and government--1988-2000.
Mexico--Social conditions--1970-
Harvard subject headings:
Mexico--Economic policy.
Mexico--Politics and government--1970-1988.
Mexico--Politics and government--1988-
Mexico--Social policy.
Princeton subject headings:
Mexico--Economic policy.
Mexico--Politics and government--1970-.
Mexico--Social policy.