Columbia subject headings:
Harvard subject headings:
Islam and state--Persian Gulf Region.
Islam and state--Persian Gulf States.
Nation-state--Economic aspects.
Persian Gulf Region--Economic conditions.
Persian Gulf Region--Politics and government.
Persian Gulf States--Politics and government.
Petroleum industry and trade--Government policy--Persian Gulf Region.
Petroleum industry and trade--Government policy--Persian Gulf States.
Princeton subject headings:
Persian Gulf Region--Economic conditions.
Persian Gulf Region--Economic policy.