Columbia subject headings:
Harvard subject headings:
Arabian Peninsula--Economic conditions--Periodicals.
Arabian Peninsula--Politics and government--Periodicals.
Bahrain--Economic conditions--Periodicals.
Bahrain--Politics and government--Periodicals.
Oman--Economic conditions--Periodicals.
Oman--Politics and government--Periodicals.
Qatar--Economic conditions--Periodicals.
Qatar--Politics and government--Periodicals.
Yemen (Republic)--Economic conditions--Periodicals.
Yemen (Republic)--Politics and government--Periodicals.
Princeton subject headings:
Bahrain--Economic conditions--Periodicals.
Oman--Economic conditions--Periodicals.
Qatar--Economic conditions--Periodicals.
Yemen (Peoples Democratic Republic)--Economic conditions--Periodicals.
Yemen--Economic conditions--Periodicals.