| 000 | 00910nam a2200253u 4500 | ||
|---|---|---|---|
| 001 | 01009532 | ||
| 003 | PWmBRO | ||
| 008 | 921014s1992 dcua b 0 010 eng | ||
| 010 | _a92045200 | ||
| 090 | 0 |
_aVF _b549.60287/A526c |
|
| 100 | 0 | 0 | _aAmpian, Sarkis G. |
| 245 | 1 | 0 |
_aCrystalline silica overview : _boccurence and analysis / _cby Sarkis G. Ampian and Robert L. Virta. |
| 260 | 0 |
_a[Washington, D.C.] : _bU.S. Dept. of the Interior, _c1992. |
|
| 300 |
_aii, 27 p. : _bill. |
||
| 490 | 1 |
_aInformation circular / Bureau of Mines, U.S. Department of the Interior ; _v9317 |
|
| 650 | 0 | _aSilica. | |
| 650 | 0 |
_aSilica _xToxicology. |
|
| 650 | 0 |
_aX-rays _xDiffraction. |
|
| 700 | 1 | 0 | _aVirta, Robert L. |
| 710 | 2 | 0 |
_aUnited States Department of the Interior. _bBureau of Mines. |
| 830 | 0 |
_aInformation circular (U.S. Department of the Interior. _bBureau of Mines) ; _v9317 |
|
| 942 | _2ddc | ||
| 994 | 0 | 1 | _a086640 |
| 999 |
_c66867 _d66867 |
||