Columbia subject headings:
Asia, Central--Economic conditions--Periodicals.
Asia, Central--Politics and government--Periodicals.
Azerbaijan--Economic conditions--Periodicals.
Azerbaijan--Politics and government--Periodicals.
Caucasus--Economic conditions--Periodicals.
Caucasus--Politics and government--Periodicals.
Petroleum industry and trade--Azerbaijan--Periodicals.
Harvard subject headings:
Princeton subject headings:
Asia, Central--Economic conditions--Periodicals.
Asia, Central--Politics and government--Periodicals.
Azerbaijan--Economic conditions--Periodicals.
Azerbaijan--Politics and government--Periodicals.
Caucasus--Economic conditions--Periodicals.
Caucasus--Politics and government--Periodicals.
Periodicals.
Petroleum industry and trade--Azerbaijan--Periodicals.