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

Keyword Search

Mining methods and costs at the New Cornelia Branch, Phelps Dodge Corporation, Ajo, Ariz.

Published Year

• 1930-1939 (1)

Subject

• Copper mines and mining--Arizona (1) *

Author

• Barr, Alfred T. (1)
• Ingham, George R. (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

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