Columbia subject headings:
Middle East--Commerce--Switzerland--History.
Middle East--Foreign economic relations--Switzerland.
Switzerland--Commerce--Middle East--History.
Switzerland--Foreign economic relations--Middle East.
Harvard subject headings:
Middle East--Commerce--Switzerland--History.
Middle East--Foreign economic relations--Switzerland.
Switzerland--Commerce--Middle East--History.
Switzerland--Foreign economic relations--Middle East.
Princeton subject headings:
Switzerland--Commerce--Turkey--History.
Turkey--Commerce--Switzerland--History.