Ulchin chiyŏk Ssangjŏn chungsŏk kwanghwadae ŭi chijil kwangsang mit kaebal kyŏngjesŏng chosa yŏnʼgu =
Subtitle: Geology and ore deposits investigation, and feasibility study for mining and ore dressing of Ssangjeon tungsten deposits in Ulchin area
By: Kim Seon Eok ... [et al.].
Series: KIGAM bullentin [sic] ; 5
Published: 1979
Place of publication: Sŏul : Chayŏn Kaebal Yŏn'guso, 1979
Language: kor
Number of pages: 87