Iggers, G. G. (2005). Historiography in the twentieth century: From scientific objectivity to the postmodern challenge, with a new epilogue by the author. Wesleyan University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Iggers, Georg G. Historiography in the Twentieth Century: From Scientific Objectivity to the Postmodern Challenge, with a New Epilogue by the Author. Middletown, CT: Wesleyan University Press, 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Iggers, Georg G. Historiography in the Twentieth Century: From Scientific Objectivity to the Postmodern Challenge, with a New Epilogue by the Author. Wesleyan University Press, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.