Frey, J., & Johnson-Shelton, N. (2014). Endgame: The calling (First Edition.). HarperCollins, an imprint of HarperCollinsPublishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrey, James, और Nils Johnson-Shelton. Endgame: The Calling. First Edition. New York: HarperCollins, an imprint of HarperCollinsPublishers, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFrey, James, और Nils Johnson-Shelton. Endgame: The Calling. First Edition. HarperCollins, an imprint of HarperCollinsPublishers, 2014.
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