Percy, B. (2023). The sky vault (First edition.). William Morrow, an imprint of HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPercy, Benjamin. The Sky Vault. First edition. New York, NY: William Morrow, an imprint of HarperCollins Publishers, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPercy, Benjamin. The Sky Vault. First edition. William Morrow, an imprint of HarperCollins Publishers, 2023.
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