Nickelodeon Publishing. (2019). Seven ruff-ruff rescues! Nickelodeon Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNickelodeon Publishing. Seven Ruff-ruff Rescues! New York: Nickelodeon Publishing, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNickelodeon Publishing. Seven Ruff-ruff Rescues! Nickelodeon Publishing, 2019.
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