Columbia subject headings:
Education--Turkey--Statistics--19th century.
Education--Turkey--Statistics--20th century.
Turkey--History--Ottoman Empire, 1288-1918.
Harvard subject headings:
Education--Turkey--History--Sources.
Education--Turkey--Statistics.
Princeton subject headings:
Education--Turkey--Statistics--19th century.
Education--Turkey--Statistics--20th century.
Statistics.
Turkey--History--Ottoman Empire, 1288-1918.