Dreyfus, G., Pilgrim, V. E., & Fletcher, R. (1992). Rathenau: An opera / by George Dreyfus. Libretto by Volker Elis Pilgrim. Draft 'content' translation from the german prepared by Roderick Fletcher. Hartmann & Stauffacher.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dreyfus, George, Volker Elis Pilgrim, و Roderick Fletcher. Rathenau: An Opera / by George Dreyfus. Libretto by Volker Elis Pilgrim. Draft 'Content' Translation from the German Prepared by Roderick Fletcher. Köln: Hartmann & Stauffacher, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Dreyfus, George, et al. Rathenau: An Opera / by George Dreyfus. Libretto by Volker Elis Pilgrim. Draft 'Content' Translation from the German Prepared by Roderick Fletcher. Hartmann & Stauffacher, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.