Beaty, D., & Collier, B. (2013). Knock knock: My dad's dream for me (First edition.). Little, Brown and Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeaty, Daniel, और Bryan Collier. Knock Knock: My Dad's Dream for Me. First edition. New York: Little, Brown and Company, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBeaty, Daniel, और Bryan Collier. Knock Knock: My Dad's Dream for Me. First edition. Little, Brown and Company, 2013.
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