Columbia subject headings:
Harvard subject headings:
Balkan Peninsula--Church history.
Luther, Martin, 1483-1546
Reformation--Balkan Peninsula.
Turkey--History--Ottoman Empire, 1288-1918.
Princeton subject headings:
Reformation--Balkan Peninsula.
Turkey--History--Ottoman Empire, 1288-1918.
Turks--Balkan Peninsula--History.
Turks--Europe, Eastern--History.