Ricks, T. E. (2020). First principles: What America's founders learned from the Greeks and Romans and how that shaped our country (First edition.). Harper, an imprint of HarperCollinsPublishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ricks, Thomas E. First Principles: What America's Founders Learned from the Greeks and Romans and How That Shaped Our Country. First edition. New York, NY: Harper, an imprint of HarperCollinsPublishers, 2020.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ricks, Thomas E. First Principles: What America's Founders Learned from the Greeks and Romans and How That Shaped Our Country. First edition. Harper, an imprint of HarperCollinsPublishers, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.