North, R. (2017). The unbeatable Squirrel Girl. Marvel Worldwide, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorth, Ryan. The Unbeatable Squirrel Girl. [New York, NY]: Marvel Worldwide, Inc., 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNorth, Ryan. The Unbeatable Squirrel Girl. Marvel Worldwide, Inc., 2017.
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