Columbia subject headings:
Water resources development--Government policy--West (U.S.)
Water resources development--Government policy--West (U.S.)--History.
Harvard subject headings:
Water resources development--Government policy--West (U.S.)
Water resources development--Government policy--West (U.S.)--History.
Princeton subject headings:
Water resources development--Law and legislation--United States.
Water resources development--Law and legislation--West (U.S.).