Oppel, K. (2015). The Boundless (First Simon & Schuster Books for Young Readers paperback edition.). Simon & Schuster Books for Young Readers.
Cita Chicago Style (17a ed.)Oppel, Kenneth. The Boundless. First Simon & Schuster Books for Young Readers paperback edition. New York: Simon & Schuster Books for Young Readers, 2015.
Cita MLA (8a ed.)Oppel, Kenneth. The Boundless. First Simon & Schuster Books for Young Readers paperback edition. Simon & Schuster Books for Young Readers, 2015.
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