Coal : the other energy [kasetvideo]

Geahča maid

• Coal : the other energy [filem]
  Almmustuhtton: (1978)
• Field description of coal/
  Dahkki: Dutcher, Russell R., et al.
  Almmustuhtton: (1978)
• Cost-effective drilling and blasting in surface coal mines/
  Dahkki: Australian Mineral Foundation
  Almmustuhtton: (1985)
• Underground loudspeaker communication systems in coal mines
  Dahkki: 8096 British Standards Institution
  Almmustuhtton: (1983)
• Explosion sensitivity and severity of South East Asian coals /
  Dahkki: Wan Zaiton Wan Sulaiman, 1982- , author
  Almmustuhtton: (2014)