Yoon, S. (2013). Penguin in love. Walker Books for Young Readers, an imprint of Bloomsbury.
Cita Chicago Style (17a ed.)Yoon, Salina. Penguin in Love. New York: Walker Books for Young Readers, an imprint of Bloomsbury, 2013.
Cita MLA (8a ed.)Yoon, Salina. Penguin in Love. Walker Books for Young Readers, an imprint of Bloomsbury, 2013.
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