Abby Klein. (2011). "Ready, Freddy! #23: A Very Crazy Christmas" (Original.). Scholastic Paperbacks.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbby Klein. "Ready, Freddy! #23: A Very Crazy Christmas". Original. Scholastic Paperbacks, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAbby Klein. "Ready, Freddy! #23: A Very Crazy Christmas". Original. Scholastic Paperbacks, 2011.
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