Friedman, G. (2009). THE NEXT 100 YEARS: A FORECAST FOR THE 21ST CENTURY. Doubleday.
Chicago Style (17. basım) AtıfFriedman, George. THE NEXT 100 YEARS: A FORECAST FOR THE 21ST CENTURY. New York: Doubleday, 2009.
MLA (9th ed.) AtıfFriedman, George. THE NEXT 100 YEARS: A FORECAST FOR THE 21ST CENTURY. Doubleday, 2009.
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