Cole, D. The impact of Goethe's Faust on nineteenth- and twentieth-cntury criticism of Marlowe's Doctor Faustus: Douglas Cole. Faust through four centuries : retrospect and analysis=Vierhundert Jahre Faust : Rückblick und Analyse.(1989).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cole, Douglas. "The Impact of Goethe's Faust on Nineteenth- and Twentieth-cntury Criticism of Marlowe's Doctor Faustus: Douglas Cole." Faust Through Four Centuries : Retrospect and Analysis=Vierhundert Jahre Faust : Rückblick Und Analyse.(1989) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cole, Douglas. "The Impact of Goethe's Faust on Nineteenth- and Twentieth-cntury Criticism of Marlowe's Doctor Faustus: Douglas Cole." Faust Through Four Centuries : Retrospect and Analysis=Vierhundert Jahre Faust : Rückblick Und Analyse.(1989), .