O'Reilly, B., & Petkoff, R. (2015). Hitler's last days: The death of the Nazi regime and the world's most notorious dictator (Unabridged.). Macmillan Audio ; Distributed by Recorded Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)O'Reilly, Bill, و Robert Petkoff. Hitler's Last Days: The Death of the Nazi Regime and the World's Most Notorious Dictator. Unabridged. New York : Prince Frederick, MD: Macmillan Audio ; Distributed by Recorded Books, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)O'Reilly, Bill, و Robert Petkoff. Hitler's Last Days: The Death of the Nazi Regime and the World's Most Notorious Dictator. Unabridged. Macmillan Audio ; Distributed by Recorded Books, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.