| 000 | 00919nam a2200241u 4500 | ||
|---|---|---|---|
| 001 | 00981680 | ||
| 003 | PWmBRO | ||
| 008 | 920507s1975 dcua b f0 010 eng | ||
| 010 | _a92035083 | ||
| 090 | 0 | 0 |
_aVF _b622.06173/C319a |
| 100 | 1 | 0 | _aCarroll, Herbert B. |
| 245 | 1 | 0 |
_aAccuracy and precision of several portable gas detectors : _badditional studies, a supplement to RI 7811 / _cby H. B. Carroll and F. E. Armstrong. |
| 260 | 0 |
_aWashington, D.C. : _bDept. of the Interior, _c1975. |
|
| 300 |
_a34 p. : _bill. |
||
| 490 | 1 |
_aReport of investigations / Bureau of Mines, U.S. Dept. of the Interior; _v8010 |
|
| 650 | 0 | _aMine gases. | |
| 650 | 0 | _aGas-detectors. | |
| 700 | 1 | 0 | _aArmstrong, F. E. |
| 710 | 2 | 0 |
_aUnited States. _bDepartment of the Inerior. _bBureau of Mines. |
| 830 | 0 |
_aReport of investigations (United States. _bDept. of the Interior. _bBureau of Mines) ; _v8010 |
|
| 942 | _2ddc | ||
| 994 | 0 | 1 | _a085169 |
| 999 |
_c65809 _d65809 |
||