Columbia subject headings:
Stream measurements--California--Statistics--Periodicals.
Water quality--California--Statistics--Periodicals.
Water resources development--California--Periodicals.
Water-supply--California--Statistics--Periodicals.
Harvard subject headings:
Princeton subject headings:
Periodicals.
Stream measurements--California--Periodicals.
Water quality--California--Periodicals.
Water resources development--California--Periodicals.