Columbia subject headings:
Land use--Government policy--West (U.S.)
Water resources development--West (U.S.)
Harvard subject headings:
Land use, Rural--Government policy--West (U.S.)
Land use--Government policy--West (U.S.)
Water resources development--West (U.S.)
Water-supply--Government policy--West (U.S.)
Princeton subject headings:
Land use, Rural--Government policy--West (U.S.).
Land use--Government policy--West (U.S.).
Water resources development--West (U.S.)
Water-supply--Government policy--West (U.S.).