Columbia subject headings:
Electric power--Government policy--United States.
Energy policy--United States.
Natural gas--Government policy--United States.
Petroleum as fuel--Government policy--United States.
Renewable energy sources--Government policy--United States.
United States. National Energy Policy Development Group.
Harvard subject headings:
Electric power--Government policy--United States.
Energy policy--United States
Natural gas--Government policy--United States.
Petroleum as fuel--Government policy--United States.
Renewable energy sources--Government policy--United States
United States. National Energy Policy Development Group.
Princeton subject headings:
Electric power--Government policy--United States.
Energy policy--United States.
Natural gas--Government policy--United States.
Petroleum as fuel--Government policy--United States.
Renewable energy sources--Government policy--United States.
United States. National Energy Policy Development Group