Matches in Library of Congress for { ?s ?p 880-01 Kwanghae (pʻyesu) pangjirŭl wihan Kangnŭng tʻanjŏn ŭi sansŏng pʻyesuhwa pangji taechʻaek yŏnʼgu = Study on the protection of the acidic-drainagization in the Gangreung coal field for anti-polluting mining hazards / Yi Chʻun-tʻaek ... [et al.].. }
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