North, R. (2019). The unbeatable Squirrel Girl. Marvel Worldwide.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorth, Ryan. The Unbeatable Squirrel Girl. New York, NY: Marvel Worldwide, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNorth, Ryan. The Unbeatable Squirrel Girl. Marvel Worldwide, 2019.
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