Fried, J., & Hansson, D. H. (2018). It doesn't have to be crazy at work (First edition.). Harper Business, an imprint of HarperCollinsPublishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fried, Jason, و David Heinemeier Hansson. It Doesn't Have to Be Crazy at Work. First edition. New York, NY: Harper Business, an imprint of HarperCollinsPublishers, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Fried, Jason, و David Heinemeier Hansson. It Doesn't Have to Be Crazy at Work. First edition. Harper Business, an imprint of HarperCollinsPublishers, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.