Isadora, R. (2014). Jake at gymnastics. Nancy Paulsen Books, an imprint of Penguin Group (USA).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIsadora, Rachel. Jake at Gymnastics. New York, NY: Nancy Paulsen Books, an imprint of Penguin Group (USA), 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रIsadora, Rachel. Jake at Gymnastics. Nancy Paulsen Books, an imprint of Penguin Group (USA), 2014.
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