Iggers, G. G. Refugee Historians from Nazi Germany: Political Attitudes towards Democracy. German scholars in exile : new studies in intellectual history.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Iggers, Georg G. "Refugee Historians from Nazi Germany: Political Attitudes Towards Democracy." German Scholars in Exile : New Studies in Intellectual History .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Iggers, Georg G. "Refugee Historians from Nazi Germany: Political Attitudes Towards Democracy." German Scholars in Exile : New Studies in Intellectual History, .
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