Columbia subject headings:
Galata (Istanbul, Turkey)--History--Sources.
Slavery--Turkey--Istanbul--History--Sources.
Harvard subject headings:
Court records--Turkey--History--Sources.
Galata (Istanbul, Turkey)--History--Sources.
Slave labor--Turkey--History--Sources.
Slaves--Emancipation--Turkey--History--Sources.
Turkey--History--Ottoman Empire, 1288-1918.
Princeton subject headings: