Columbia subject headings:
Droughts--Government policy--Northwest, Pacific.
Electric power--Northwest, Pacific.
Fishes--Effect of water levels on--Northwest, Pacific.
Power resources--Northwest, Pacific.
Harvard subject headings:
Droughts--Government policy--Northwest, Pacific.
Electric power--Northwest, Pacific.
Fishes--Effect of water levels on--Northwest, Pacific.
Power resources--Northwest, Pacific.
Princeton subject headings:
Droughts--Government policy--Northwest, Pacific.
Electric power--Northwest, Pacific.
Fishes--Effect of water levels on--Northwest, Pacific.
Power resources--Northwest, Pacific.