Izzo, D. G. (2001). Christopher Isherwood: His era, his gang, and the legacy of the truly strong man. University of South Carolina Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Izzo, David Garrett. Christopher Isherwood: His Era, His Gang, and the Legacy of the Truly Strong Man. Columbia: University of South Carolina Press, 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Izzo, David Garrett. Christopher Isherwood: His Era, His Gang, and the Legacy of the Truly Strong Man. University of South Carolina Press, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.