Παρόμοια τεκμήρια

• Costs of coal surface mining and reclamation in Appalachia /
  ανά: Nephew, E. A
  Έκδοση: (1976)
• Surface mining environmental monitoring and reclamation handbook /
  Έκδοση: (1983)
• International Journal of Mining, Reclamation and Environment
  Έκδοση: (1987)
• International Symposium on Mine Mechanization and Automation : Proceedings, Golden, Colorado, USA, June 10-13, 1991 /
  Έκδοση: (1991)
• International symposium on mining research : proceedings of a symposium held at the University of Missouri, February 1961 /
  Έκδοση: (1962)