Riordan, R., & Guetig, C. (2015). The sword of summer (Unabridged.). Listening Library, an imprint of the Penguin Random House Audio Publishing Group : Books on Tape.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRiordan, Rick, और Christopher Guetig. The Sword of Summer. Unabridged. New York, New York: Listening Library, an imprint of the Penguin Random House Audio Publishing Group : Books on Tape, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRiordan, Rick, और Christopher Guetig. The Sword of Summer. Unabridged. Listening Library, an imprint of the Penguin Random House Audio Publishing Group : Books on Tape, 2015.
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