Hudson, K. (2015). Bear and Duck (First edition.). Harper, an imprint of HarperCollinsPublishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHudson, Katy. Bear and Duck. First edition. New York, NY: Harper, an imprint of HarperCollinsPublishers, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHudson, Katy. Bear and Duck. First edition. Harper, an imprint of HarperCollinsPublishers, 2015.
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