| 000 | 00432nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 080 |
_a632.006.2 _bB325L |
||
| 100 | _aEllithorpe, Glenn L | ||
| 245 | _aRotary drilling handbook on accident prevention and safe operating practices. | ||
| 260 |
_aNew Delhi _bCentral Ground Water Board Ministry of Agriculture Goverment _c1971 |
||
| 300 | _a67p. | ||
| 901 | _a119219 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c10792 _d10792 |
||