Davis, J. (2015). Two awesome hours: Science-based strategies to harness your best time and get your most important work done (First edition.). HarperOne, an imprint of HarperCollinsPublishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Davis, Josh. Two Awesome Hours: Science-based Strategies to Harness Your Best Time and Get Your Most Important Work Done. First edition. New York, NY: HarperOne, an imprint of HarperCollinsPublishers, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Davis, Josh. Two Awesome Hours: Science-based Strategies to Harness Your Best Time and Get Your Most Important Work Done. First edition. HarperOne, an imprint of HarperCollinsPublishers, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.