| 000 | 00366nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 190711s9999 xx 000 0 und d | ||
| 082 | _a622.2 D745 | ||
| 100 | _aDOWDING,C.H | ||
| 245 | 0 | _aROCK MECHANICS IN PRODUCTIVITY AND PROTECTION TWENTY FIFTH SYMPOSIUM ON ROCK MEC | |
| 260 |
_aNEW YORK _bSOCIETY OF MINING ENGINEERS _c1984 |
||
| 300 | _a24X17 | ||
| 942 |
_cBK _2DDC |
||
| 999 |
_c22081 _d22081 |
||