Columbia subject headings:
Bursa (Turkey)--Guidebooks.
Byzantine Empire--History.
Edirne (Turkey)--Guidebooks.
Istanbul (Turkey)--Guidebooks.
Turkey--History--Ottoman Empire, 1288-1918.
İznik (Turkey)--Guidebooks.
Harvard subject headings:
Istanbul (Turkey)--Guidebooks.
Turkey--Guidebooks.
Princeton subject headings: