Davis, K. (2016). A riddle in Ruby (First Greenwillow paperback edition.). Greenwillow Books, an imprint of HarperCollins Publishers.
Cita Chicago Style (17a ed.)Davis, Kent. A Riddle in Ruby. First Greenwillow paperback edition. New York, NY: Greenwillow Books, an imprint of HarperCollins Publishers, 2016.
Cita MLA (8a ed.)Davis, Kent. A Riddle in Ruby. First Greenwillow paperback edition. Greenwillow Books, an imprint of HarperCollins Publishers, 2016.
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