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| 006 | a|||||r|||| 00| 0 | ||
| 007 | ta | ||
| 008 | 220923b |||||||| |||| 00| 0 eng d | ||
| 037 | _cGeneral Book | ||
| 040 |
_aRTL _cRTL _beng |
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| 041 |
_2eng _aeng |
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| 082 | _aX9(F555).73.N7, L7 | ||
| 100 |
_aMerklein Helmut A _9271024 |
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| 245 | 0 | _aEnergy economics | |
| 260 |
_aHouston _bGulf Publishing Company _c1977 |
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| 300 |
_aix,230p. _ccm. |
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| 650 | _aPetroleum Industry | ||
| 700 |
_a Hardy W Corey _9271025 |
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| 942 |
_hX9(F555).73.N7, L7 _cGB _2CC |
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