Hannibal, J. R. (2017). The fourth ruby (First edition.). Simon & Schuster Books for Young Readers.
Cita Chicago Style (17a ed.)Hannibal, James R. The Fourth Ruby. First edition. New York: Simon & Schuster Books for Young Readers, 2017.
Cita MLA (8a ed.)Hannibal, James R. The Fourth Ruby. First edition. Simon & Schuster Books for Young Readers, 2017.
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