Columbia subject headings:
Bahrain--Economic conditions.
Kuwait--Economic conditions.
Oman--Economic conditions.
Qatar--Economic conditions.
United Arab Emirates--Economic conditions.
Harvard subject headings:
Bahrain--Economic conditions.
Kuwait--Economic conditions.
Oman--Economic conditions.
Qatar--Economic conditions.
United Arab Emirates--Economic conditions.
Princeton subject headings:
Bahrain--Economic conditions.
Kuwait--Economic conditions.
Oman--Economic conditions.
Qatar--Economic conditions.
United Arab Emirates--Economic conditions.