Columbia subject headings:
Judaism--Turkey--History.
Karaims--Turkey--Istanbul--History.
Karaites--Turkey--Istanbul--History.
Khazars--Turkey--History.
Harvard subject headings:
Judaism--Turkey--History.
Karaims--Turkey--Istanbul--History.
Karaites--Turkey--Istanbul--History.
Khazars--Turkey--History.
Princeton subject headings:
Karaites--Turkey--Istanbul--History.