Columbia subject headings:
Mehmed II, Sultan of the Turks, 1432-1481.
Turkey--History--Mehmed II, 1451-1481.
Harvard subject headings:
Mehmed II, Sultan of the Turks, 1432-1481.
Turkey--History--Mehmed II, 1451-1481.
Princeton subject headings:
Mehmed II, Sultan of the Turks, 1432-1481.