Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Multiple zone mining plus beneficiation of western phosphate rock :a cost estimate and comparison with selective mining

Published Year

• 1970-1979 (1)

Subject

• Ore-dressing--Costs (1)
• Phosphate mines and mining--Costs (1) *

Author

• Spencer, Richard N. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010