Chŏng, Y., & Kim, C. (2020). Seven years of darkness. Penguin Books.
Cita Chicago Style (17a ed.)Chŏng, Yu-jŏng, y Chi-Young Kim. Seven Years of Darkness. [New York]: Penguin Books, 2020.
Cita MLA (8a ed.)Chŏng, Yu-jŏng, y Chi-Young Kim. Seven Years of Darkness. Penguin Books, 2020.
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