Avi. (2010). Crispin: The cross of lead (newbery medal winner).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAvi. Crispin: The Cross of Lead (newbery Medal Winner). 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAvi. Crispin: The Cross of Lead (newbery Medal Winner). 2010.
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