Columbia subject headings:
Water--Law and legislation--Mexico--History--Sources.
Water-supply--Economic aspects--Mexico--History--Sources.
Water-supply--Government policy--Mexico--History--Sources.
Water-supply--Mexico--History--Sources.
Harvard subject headings:
Archivo Histórico del Agua (Mexico)
Water--Law and legislation--Mexico--History--Sources.
Water--Law and legislation--Mexico--Sources.
Water-supply--Economic aspects--Mexico--History--Sources.
Water-supply--Economic aspects--Mexico--Sources.
Water-supply--Government policy--Mexico--History--Sources.
Water-supply--Government policy--Mexico--Sources.
Water-supply--Mexico--History--Sources.
Princeton subject headings:
Archivo Histórico del Agua (Mexico)
Water--Law and legislation--Mexico--History--Sources.
Water-supply--Economic aspects--Mexico--History--Sources.
Water-supply--Government policy--Mexico--History--Sources.
Water-supply--Mexico--History--Sources.