Columbia subject headings:
Circassians.
Turkey--History--Revolution, 1918-1923.
Çerkes Ethem, ca. 1883-ca. 1949.
Harvard subject headings:
Circassians.
Turkey--History--Revolution, 1918-1923.
Çerkes Ethem, approximately 1883-approximately 1949.
Princeton subject headings:
Circassians.