ISBN 0-8018-4215-8* Finkel, Caroline, "Osman's Dream", (Basic Books, 2005), 57; "Istanbul was only adopted as the city's official name in 1930..".
ISBN 0-8018-4215-8* Finkel, Caroline, "Osman's Dream", (Basic Books, 2005), 57; "Istanbul was only adopted as the city's official name in 1930..".