Columbia subject headings:
Mexico--Economic conditions--20th century.
Mexico--Politics and government--20th century.
Mexico--Social conditions--20th century.
Harvard subject headings:
Mexico--Economic conditions--1970-1982.
Mexico--Economic conditions--1982-1994.
Mexico--Politics and government--1970-1988.
Mexico--Social conditions--1970-
Princeton subject headings:
Mexico--Economic conditions--1970-1982.
Mexico--Economic conditions--1982-1994.
Mexico--Politics and government--1970-1988.
Mexico--Social conditions--1970-