Columbia subject headings:
Harvard subject headings:
Metropolitan areas--Mexico--Statistics.
Mexico--Economic conditions--1982-1994--Statistics.
Mexico--Economic conditions--1994---Statistics.
Mexico--Population--Statistics.
Mexico--Social conditions--1970---Statistics.
Princeton subject headings:
Metropolitan areas--Mexico--Statistics.
Mexico City (Mexico)--Population--Statistics.
Mexico City (Mexico)--Social conditions--Statistics.
Statistics.