Bishop, C. (2012). Princess Academy: Palace of stone. AudioGO.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBishop, Cynthia. Princess Academy: Palace of Stone. [North Kingstown, RI]: AudioGO, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBishop, Cynthia. Princess Academy: Palace of Stone. AudioGO, 2012.
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