Esper, M. T. (2022). A sacred oath: Memoirs of a Secretary of Defense during extraordinary times (First edition.). William Morrow, an imprint of HarperCollinsPublishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Esper, Mark T. A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times. First edition. New York, NY: William Morrow, an imprint of HarperCollinsPublishers, 2022.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Esper, Mark T. A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times. First edition. William Morrow, an imprint of HarperCollinsPublishers, 2022.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.