Columbia subject headings:
Islam--History.
Islamic Empire--History.
Turkic peoples--Religion.
Turkic peoples--Religious life--History.
Turkic peoples--Social life and customs.
Harvard subject headings:
Islam--History
Islam--Turkey--History
Islamic Empire--History.
Turkey--Religious life and customs.
Turkic peoples--Religion--History.
Turkic peoples--Religious life--History.
Turkic peoples--Social life and customs--History.
Princeton subject headings:
Islam--History.
Islamic Empire--History.
Turkic peoples--Religion--History.
Turkic peoples--Religious life--History.
Turkic peoples--Social life and customs--History.