Coal : the other energy [kasetvideo]

Ижил төстэй зүйлс

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