Sanŏpchʻe enŏji chŏryak tʻŭkpyŏl chosa e kwanhan yŏnʼgu =
Subtitle: A Special study on the energy conservation in industry
By: yŏnʼgu kigwan Hanʼguk Yŏl Kwalli Hyŏphoe.
Publisher: Tongnyŏk Chawŏnbu
Published: 1979
Language: kor
Number of pages: 1154