Columbia subject headings:
Arabian Peninsula--Foreign relations.
Arabian Peninsula--History.
Persian Gulf Region--Foreign relations.
Persian Gulf Region--History.
Harvard subject headings:
Arabian Peninsula--Foreign relations.
Arabian Peninsula--History.
Persian Gulf Region--Foreign relations.
Persian Gulf Region--History.
Princeton subject headings:
Arabian Peninsula--Foreign relations.
Arabian Peninsula--History.
Persian Gulf Region--Foreign relations.
Persian Gulf Region--History.