Columbia subject headings:
Energy industries--Political aspects.
Energy policy--Political aspects--United States.
International economic relations.
Petroleum industry and trade--Political aspects.
United States--Foreign relations--1945-1989.
World politics--1945-1989.
Harvard subject headings:
Energy industries--Political aspects.
Energy policy--Political aspects--United States.
Energy policy--United States
International economic relations.
Petroleum industry and trade--Political aspects
United States--Foreign relations--1945-
United States--Foreign relations--1945-1989.
World politics--1945-
World politics--1945-1989
Princeton subject headings:
Energy industries--Political aspects.
Energy policy--Political aspects--United States.
International economic relations.
Petroleum industry and trade--Political aspects.
United States--Foreign relations--1945-1989.
World politics--1945-1989.