Bailey, C. (2016). The productivity project: Accomplishing more by managing your time, attention, and energy better (First edition.). Crown Business.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bailey, Chris. The Productivity Project: Accomplishing More by Managing Your Time, Attention, and Energy Better. First edition. New York: Crown Business, 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bailey, Chris. The Productivity Project: Accomplishing More by Managing Your Time, Attention, and Energy Better. First edition. Crown Business, 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.