Columbia subject headings:
Energy conservation--Law and legislation--United States.
Energy policy--United States.
United States--Economic policy--1971-1981.
Harvard subject headings:
Energy conservation--Law and legislation--United States
Energy policy--United States
United States--Economic policy--1971-1981.
Princeton subject headings:
Energy conservation--Law and legislation--United States.
Energy policy--United States.
United States--Economic policy--1971-1981.