Columbia subject headings:
Iran--Civilization--To 640.
Iran--History--To 640.
Harvard subject headings:
Iran--Antiquities.
Iran--Civilization--To 640 A.D.
Iran--Civilization--To 640.
Iran--History--To 640
Princeton subject headings:
Iran--Antiquities.
Iran--Civilization--To 640.
Iran--History--To 640.