| 000 | 00341nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 190711s9999 xx 000 0 und d | ||
| 082 | _a622.42 H333 | ||
| 100 | _aHARTMAN,H.L | ||
| 245 | 0 | _aMINE VENTILATION SYMPOSIUM FIRST PROCEEDINGS (ALABAMA) | |
| 260 |
_aNEW YORK _bSOCIETY OF MINING ENGINEERS _c1982 |
||
| 300 | _a29X23 | ||
| 942 |
_cBK _2DDC |
||
| 999 |
_c22075 _d22075 |
||