Sharpson, N. (2023). Knock knock, open wide (First edition.). Nightfire, Tor Publishing Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSharpson, Neil. Knock Knock, Open Wide. First edition. New York: Nightfire, Tor Publishing Group, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSharpson, Neil. Knock Knock, Open Wide. First edition. Nightfire, Tor Publishing Group, 2023.
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