Columbia subject headings:
Municipal water supply--Mexico.
Water utilities--Mexico.
Water--Mexico--Management.
Water--Social aspects--Mexico.
Harvard subject headings:
Municipal water supply--Mexico.
Water utilities--Mexico.
Water--Mexico--Management.
Water--Social aspects--Mexico.
Princeton subject headings:
Municipal water supply--Mexico.
Water utilities--Mexico.
Water--Mexico--Management.
Water--Social aspects--Mexico.