Lewis, R. (2014). No greatness without goodness: How a father's love changed a company and sparked a movement. Tyndale House Publishers, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLewis, 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLewis, Randy. No Greatness Without Goodness: How a Father's Love Changed a Company and Sparked a Movement. Tyndale House Publishers, Inc., 2014.
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