Stevenson, S. (2016). Sleep smarter: 21 essential strategies to sleep your way to a better body, better health, and bigger success. Rodale Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Stevenson, Shawn. Sleep Smarter: 21 Essential Strategies to Sleep Your Way to a Better Body, Better Health, and Bigger Success. New York, NY: Rodale Books, 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Stevenson, Shawn. Sleep Smarter: 21 Essential Strategies to Sleep Your Way to a Better Body, Better Health, and Bigger Success. Rodale Books, 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.