Columbia subject headings:
Harvard subject headings:
Turkey--Foreign economic relations--Sources.
Turkey--Foreign relations--Sources.
Turkey--History--1453-1683--Sources.
Turkey--History--Ottoman Empire, 1288-1918--Sources.
Princeton subject headings:
Turkey--Foreign economic relations--Sources.
Turkey--Foreign relations--Sources.
Turkey--History--1453-1683--Sources.
Turkey--History--Ottoman Empire, 1288-1918--Sources.