Stanley, E. (2022). Sonic the hedgehog (2018), volume 9: Chao races and badnik bases (Collected.). Idea and Design Work, LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStanley, Evan. Sonic the Hedgehog (2018), Volume 9: Chao Races and Badnik Bases. Collected. Cleveland: Idea and Design Work, LLC, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStanley, Evan. Sonic the Hedgehog (2018), Volume 9: Chao Races and Badnik Bases. Collected. Idea and Design Work, LLC, 2022.
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