Lewis, R. (2014). No greatness without goodness: How a father's love changed a company and sparked a movement. Tyndale House Publishers, Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lewis, Randy. No Greatness Without Goodness: How a Father's Love Changed a Company and Sparked a Movement. Carol Stream, Illinois: Tyndale House Publishers, Inc., 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lewis, Randy. No Greatness Without Goodness: How a Father's Love Changed a Company and Sparked a Movement. Tyndale House Publishers, Inc., 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.