Columbia subject headings:
Harvard subject headings:
Arab countries--Economic conditions--Periodicals.
Arab countries--Economic integration.
Petroleum industry and trade--Arab countries--Periodicals.
Power resources--Arab countries--Periodicals.
Princeton subject headings:
Arab countries--Economic conditions--Periodicals.
Arab countries--Economic integration--Periodicals.
Periodicals.
Petroleum industry and trade--Arab countries--Periodicals.
Power resources--Arab countries--Periodicals.