Columbia subject headings:
Energy policy--Mediterranean Sea.
Gas industry--Economic aspects--Middle East.
Gas industry--Political aspects--Middle East.
Natural gas--Mediterranean Sea.
Natural gas--Middle East.
Harvard subject headings:
Gas industry--Economic aspects--Middle East.
Gas industry--Political aspects--Middle East.
Natural gas--Middle East.
Princeton subject headings:
Energy policy--Mediterranean Sea.
Gas industry--Economic aspects--Middle East.
Gas industry--Political aspects--Middle East.
Natural gas--Mediterranean Sea.
Natural gas--Middle East.