Spinelli, J. (2008). Smiles to go. Harper's Children's Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpinelli, Jerry. Smiles to Go. New York: Harper's Children's Audio, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpinelli, Jerry. Smiles to Go. Harper's Children's Audio, 2008.
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