Giles, S. M. (2018). The boy at the keyhole (Center Point Large Print edition.). Center Point Large Print.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGiles, Stephen M. The Boy at the Keyhole. Center Point Large Print edition. Thorndike, Maine: Center Point Large Print, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGiles, Stephen M. The Boy at the Keyhole. Center Point Large Print edition. Center Point Large Print, 2018.
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