Columbia subject headings:
Cities and towns--Mexico, North.
Marginality, Social--Mexico, North.
Mexico, North--Boundaries--Social aspects.
Sociology, Urban--Mexico, North.
United States--Boundaries--Economic aspects.
Harvard subject headings:
City planning--Mexico--Case studies.
Gated communities--Mexico.
Princeton subject headings:
City and town life--Mexican American-Border Region.
City and town life--Mexico, North.
Mexican-American Border Region--Social conditions.
Mexico, North--Social conditions.
Sociology, Urban--Mexican-American Border Region.
Sociology, Urban--Mexico, North.