Lignite symposium: biennial symposium. 0013, volume 02 : Technology and utilization of low-rank coals: proceedings : Grand-Forks, ND, 20.05.1985-23.05.1985.

Saved in:
Jones, M. L., (editor)
Grand-Forks, ND, 1986.
306 S.
englisch
lignite : conference united states