Columbia subject headings:
Energy conservation--United States--Congresses.
Energy policy--United States--Congresses.
Power resources--United States--Congresses.
Harvard subject headings:
Energy conservation--United States--Congresses
Energy policy--United States--Congresses
Power resources--United States--Congresses
Princeton subject headings:
Energy conservation--United States--Congresses.
Energy policy--United States--Congresses.
Power resources--United States--Congresses.