| 000 | 00501nam a22001577a 4500 | ||
|---|---|---|---|
| 008 | 230616b |||||||| |||| 00| 0 eng d | ||
| 022 | _a0748-139X | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_aR 621.95.004.5(058.7) _bM2 |
||
| 245 |
_aLand drilling & oilwell servicing contractors _c/ Petroleum Publishing Co. |
||
| 260 |
_aOkla: _bPetroleum Publishing Co., _c1982 |
||
| 300 | _a300p. | ||
| 650 | _aSocial science | ||
| 653 | _aLand drilling | ||
| 942 |
_2udc _cREF |
||
| 999 |
_c44286 _d44286 |
||