Columbia subject headings:
Environmental law--Social aspects.
Water conservation--Law and legislation.
Water conservation--Social aspects.
Water use--Social aspects.
Water--Law and legislation.
Water--Social aspects.
Water-supply--Social aspects.
Harvard subject headings:
Environmental law--Social aspects.
Water conservation--Law and legislation
Water conservation--Social aspects.
Water use--Social aspects.
Water--Law and legislation
Water--Social aspects.
Water-supply--Social aspects.
Princeton subject headings: