Tʻanʼgwang kaebal hamnihwa yŏng̕u =
Subtitle: Study for the rationalization of coal mine development.
Contributors: Hanʼguk Tongnyŏk Chawŏn Yŏnʼguso.
Series: Yŏnʼgu pogosŏ = -- KIER research report -- KR-89-5B; Yŏnʼgu pogosŏ (Hanʼguk Tongnyŏk Chawŏn Yŏnʼguso) -- KR-89-5B.
Publisher: Hanʼguk Tongnyŏk Chawŏn Yŏnʼguso
Published: 1990
Place of publication: Taejŏn Chikhalsi
Language: kor
Number of pages: 271
Other titles: Study for the rationalization of coal mine development