Figueiredo, Y. (2012). “The Defining Issues of the Twenty-First Century.”.
Chicago Style (17. basım) AtıfFigueiredo, Yves. “The Defining Issues of the Twenty-First Century.”. 2012.
MLA (8th ed.) AtıfFigueiredo, Yves. “The Defining Issues of the Twenty-First Century.”. 2012.
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