Parsons, T. (2010). The rule of empires: Those who built them, those who endured them, and why they always fall. Oxford University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Parsons, Timothy. The Rule of Empires: Those Who Built Them, Those Who Endured Them, and Why They Always Fall. Oxford ; New York: Oxford University Press, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Parsons, Timothy. The Rule of Empires: Those Who Built Them, Those Who Endured Them, and Why They Always Fall. Oxford University Press, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.