Columbia subject headings:
Technology transfer--Congresses.
Water-power--Congresses.
Water-power--Economic aspects--Congresses.
Water-power--Environmental aspects--Congresses.
Water-power--Government policy--Congresses.
Harvard subject headings:
Princeton subject headings:
Hydroelectric power plants--Environmental aspects--Congresses.
Hydroelectric power plants--Government policy--Congresses.
Water-power--Congresses.