Columbia subject headings:
Turkey--Archival resources.
Turkey--Economic conditions.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Social conditions.
Harvard subject headings:
Turkey--Economic conditions--1288-1918.
Turkey--Economic conditions.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Social conditions--1288-1918.
Turkey--Social conditions.
Princeton subject headings:
Turkey--Economic conditions.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Social conditions.