Columbia subject headings:
Kurdish language--History.
Kurdistan--Civilization.
Kurdistan--History.
Kurds--Ethnic identity.
Kurds--Origin.
Harvard subject headings:
Kurdish language--History.
Kurdistan--Civilization.
Kurdistan--History
Kurds--Ethnic identity
Kurds--Origin.
Princeton subject headings:
Kurdish language--History.
Kurdistan--Civilization.
Kurdistan--History.
Kurds--Ethnic identity.
Kurds--Origin.