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| 008 | 260224s2007 xxu | ||
| 245 | 0 | 0 | _aDrilling engineering association joint industry projects investigate host of drilling challenges |
| 260 |
_a _b _cmay. jun 2007 |
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| 270 | _a11/04/2008 ; 11/04/2008 | ||
| 300 | _a3 p. ; 126-130 | ||
| 581 | _a3 | ||
| 773 | 0 |
_tDrilling Contractor _g63 |
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| 942 | _cARTICULO | ||
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