| 000 | 00516nab a2200181 4500 | ||
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| 005 | 20260520004512.0 | ||
| 008 | 260224s2016 xxu ing | ||
| 041 | _aInglés | ||
| 245 | 0 | 0 | _aChanllenging economics require drill bit improvements to lower break-even costs |
| 260 |
_a _b _coct. 2016 |
||
| 270 | _a16/05/2017 ; 16/05/2017 | ||
| 300 | _a3 p. ; 47-50 | ||
| 581 | _a10 | ||
| 773 | 0 |
_tWorld Oil _g237 |
|
| 942 | _cARTICULO | ||
| 100 | 1 |
_aFleming, Craig _955328 |
|
| 999 |
_c190366 _d190366 |
||