Davis, K. (2016). A riddle in Ruby (First Greenwillow paperback edition.). Greenwillow Books, an imprint of HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDavis, Kent. A Riddle in Ruby. First Greenwillow paperback edition. New York, NY: Greenwillow Books, an imprint of HarperCollins Publishers, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDavis, Kent. A Riddle in Ruby. First Greenwillow paperback edition. Greenwillow Books, an imprint of HarperCollins Publishers, 2016.
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