Roberts, C. (2005). Heavy words lightly thrown: The reason behind the rhyme. Gotham Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoberts, Chris. Heavy Words Lightly Thrown: The Reason Behind the Rhyme. New York: Gotham Books, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoberts, Chris. Heavy Words Lightly Thrown: The Reason Behind the Rhyme. Gotham Books, 2005.
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