| 000 | 00977nam a2200265u 4500 | ||
|---|---|---|---|
| 001 | 01025783 | ||
| 003 | PWmBRO | ||
| 008 | 921022s1980 dcuab b f00010 eng | ||
| 010 | _a 80607071 | ||
| 069 | _a 92055021 | ||
| 090 | 0 |
_aVF _b622.343/A285e |
|
| 100 | 0 | 0 | _aAhlness, Jon K. |
| 245 | 1 | 0 |
_aElectronic ore sorting tests on native copper ore / _cby Jon K. Ahlness and James C. Kirchner. |
| 260 | 0 |
_a[Washington, D.C.] : _bU.S. Dept. of the Interior, _c1980. |
|
| 300 |
_aii, 36 p. : _bill., 1 map. |
||
| 490 | 1 |
_aReport of investigations / Bureau of Mines, U.S. Department of the Interior ; _v8490 |
|
| 650 | 0 |
_aElectronic ore sorters _xTesting. |
|
| 650 | 0 |
_aCopper _xMetallurgy. |
|
| 650 | 0 |
_aCopper ores _zMichigan. |
|
| 700 | 1 | 0 | _aKirchner, James C. |
| 710 | 2 | 0 |
_aUnited States Department of the Interior. _bBureau of Mines. |
| 830 | 0 |
_aReport of investigations (U.S. Department of the Interior. _bBureau of Mines) ; _v8490. |
|
| 942 | _2ddc | ||
| 994 | 0 | 1 | _a087010 |
| 999 |
_c67099 _d67099 |
||