880-01 Ch'ŏn'guk kwa chisang = Sobre el cielo y la tierra / Kyohwang P'ŭranch'isŭk'o (Horŭhe Mario Perŭgogŭllio), Abŭraham Sŭk'orŭk'a chiŭm ; omgini Kang Sin-gyu.
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