Lieberman, D. E., & Runnette, S. (2021). Exercised: Why something we never evolved to do is healthy and rewarding (Unabridged.). Random House Audio.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lieberman, Daniel E., و Sean Runnette. Exercised: Why Something We Never Evolved to Do Is Healthy and Rewarding. Unabridged. New York: Random House Audio, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lieberman, Daniel E., و Sean Runnette. Exercised: Why Something We Never Evolved to Do Is Healthy and Rewarding. Unabridged. Random House Audio, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.