Columbia subject headings:
Herat (Afghanistan)--History.
Khurāsān (Iran : Province)--History.
Harvard subject headings:
Herat (Afghanistan)--History.
Khurāsān (Iran)--History.
Kurds--Iran--Khurāsān--History.
Princeton subject headings:
Herat (Afghanistan)--History.
Khurāsān (Iran)--History.
Kurds--Iran--Khurāsān--History.