Columbia subject headings:
Water-supply engineering--New York (State)--Brooklyn (New York)--Water-supply.
Waterworks--New York (State)--Brooklyn (New York)
Harvard subject headings:
Water-supply engineering--Brooklyn (New York, N.Y.)--Water-supply.
Water-supply engineering--Water-supply.
Water-supply--New York (State)--New York
Waterworks
Waterworks--Brooklyn (New York, N.Y.)
Princeton subject headings: