Columbia subject headings:
Caucasus--History.
Caucasus--Relations--Turkey.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Relations--Caucasus.
Harvard subject headings:
Caucasus--History.
Caucasus--Relations--Turkey.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Relations--Caucasus.
Princeton subject headings:
Caucasus--Relations--Turkey.
Turkey--History--1453-1683.
Turkey--History--1683-1829.
Turkey--Relations--Caucasus.