Columbia subject headings:
Arabian Peninsula--Commerce.
Arabian Peninsula--Economic conditions.
Finance--Arabian Peninsula.
Petroleum industry and trade--Arabian Peninsula.
Harvard subject headings:
Arabian Peninsula--Commerce.
Arabian Peninsula--Economic conditions.
Finance--Arabian Peninsula.
Petroleum industry and trade--Arabian Peninsula
Princeton subject headings:
Arabian Peninsula--Commerce.
Arabian Peninsula--Economic conditions.
Finance--Arabian Peninsula.
Petroleum industry and trade--Arabian Peninsula.