1998 assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United State - detaljert visning

1998 assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States

by the U.S. Geological survey mineral resource assessment team
Bok Engelsk 2002


Utgitt	Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey , 2002
Omfang	21 s. : ill.
Opplysninger	"Overview of the 1998 National mineral resource assessment". - 1 optisk plate (CD-ROM ) i lomme
Emner	Mines and mineral resources - United States Ore-deposits - United States
ISBN	0607951117