Potter, E. (2007). Olivia Kidney and the secret beneath the city. Philomel Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPotter, Ellen. Olivia Kidney and the Secret Beneath the City. New York: Philomel Books, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPotter, Ellen. Olivia Kidney and the Secret Beneath the City. Philomel Books, 2007.
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