Kraft, G. (2020). Steven Universe: Playing by ear. KaBoom!, a division of Boom Entertainment, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKraft, Grace. Steven Universe: Playing by Ear. Los Angeles, CA: KaBoom!, a division of Boom Entertainment, Inc., 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKraft, Grace. Steven Universe: Playing by Ear. KaBoom!, a division of Boom Entertainment, Inc., 2020.
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