Columbia subject headings:
Harvard subject headings:
Istanbul (Turkey)--Description and travel.
Mosques
Turkey--Foreign relations.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Politics and government.
Princeton subject headings:
Istanbul (Turkey)--Description and travel.
Mosques.
Turkey--Foreign relations.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Politics and government.