Boydell, O. (2021). How a king plays: 64 chess tips from a kid champion (First edition.). Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoydell, Oliver. How a King Plays: 64 Chess Tips from a Kid Champion. First edition. New York: Random House, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBoydell, Oliver. How a King Plays: 64 Chess Tips from a Kid Champion. First edition. Random House, 2021.
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