Columbia subject headings:
Harvard subject headings:
Balkan Peninsula--Civilization.
Balkan Peninsula--Foreign relations--Middle East.
Balkan Peninsula--History.
Middle East--Civilization.
Middle East--Foreign relations--Balkan Peninsula.
Middle East--History.
Princeton subject headings:
Balkan Peninsula--Foreign relations--Middle East.
Balkan Peninsula--History.
Middle East--Foreign relations--Balkan Peninsula.
Middle East--History.