Columbia subject headings:
Petroleum law and legislation--United States.
Petroleum products--Prices--United States.
United States. Federal Energy Administration.
Harvard subject headings:
Petroleum law and legislation--United States.
Petroleum products--Prices--Law and legislation--United States.
United States. Federal Energy Administration.
Princeton subject headings:
Petroleum law and legislation--United States.
Petroleum products--Prices--Law and legislation--United States.
United States. Federal Energy Administration