Columbia subject headings:
Water conservation--Middle East.
Water quality--Middle East.
Harvard subject headings:
Water conservation--Middle East.
Water quality--Middle East.
Princeton subject headings:
Aquifers--Middle East.
Geology, Stratigraphic--Paleogene.
Groundwater flow--Middle East.
Groundwater--Middle East.
Water quality--Middle East.
Water resources development--Middle East.
Water-supply--Middle East.