Beastly Boys (Writers' group) & Duddle, J. (2011). The big beast sale. Simon & Schuster Children's.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeastly Boys (Writers' group) और Jonny Duddle. The Big Beast Sale. london: Simon & Schuster Children's, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBeastly Boys (Writers' group) और Jonny Duddle. The Big Beast Sale. Simon & Schuster Children's, 2011.
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