Columbia subject headings:
Historians--Turkey.
Turkey--Civilization.
Turkey--History.
Ögel, Bahaeddin.
Harvard subject headings:
Historians--Turkey.
Ögel, Bahaeddin
Turkey--Civilization.
Turkic peoples--Study and teaching.
Princeton subject headings:
Historians--Turkey--Biography.
Ögel, Bahaeddin.
Turkey--Civilization.
Turkey--History.