Columbia subject headings:
Harvard subject headings:
Energy industries--Bibliography.
Energy industries--Statistical services--Bibliography.
Energy industries--Statistics--Bibliography.
Energy policy--Bibliography
Power resources--Economic aspects--Bibliography.
Power resources--Statistical services--Bibliography.
Power resources--Statistics--Bibliography.
Princeton subject headings:
Energy industries--Bibliography.
Energy industries--Statistical services--Bibliography.
Energy industries--Statistics--Bibliography.
Energy policy--Bibliography.
Power resources--Economic aspects--Bibliography.
Power resources--Statistical services--Bibliography.
Power resources--Statistics--Bibliography.