Gundry, S. R. (2021). The energy paradox: What to do when your get up and go has got up and gone (First edition.). Harper Wave, an imprint of HarperCollinsPublishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gundry, Steven R. The Energy Paradox: What to Do When Your Get Up and Go Has Got Up and Gone. First edition. New York, NY: Harper Wave, an imprint of HarperCollinsPublishers, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Gundry, Steven R. The Energy Paradox: What to Do When Your Get Up and Go Has Got Up and Gone. First edition. Harper Wave, an imprint of HarperCollinsPublishers, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.