Columbia subject headings:
Harvard subject headings:
Cities and towns, Medieval--Water-supply.
Water in literature.
Water use--Spain--History--To 1500.
Water--Religious aspects
Water--Social aspects--Spain.
Water-supply--Spain--History--To 1500.
Princeton subject headings:
Water in literature.
Water use--Spain--History--To 1500.
Water--Religious aspects.
Water--Social aspects--Spain.
Water-supply--Spain--History--To 1500.