Gibbs, S. (2022). Spy school project X (First edition.). Simon & Schuster Books for Young Readers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGibbs, Stuart. Spy School Project X. First edition. New York: Simon & Schuster Books for Young Readers, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGibbs, Stuart. Spy School Project X. First edition. Simon & Schuster Books for Young Readers, 2022.
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