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| 041 | _aeng | ||
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| 100 | _aNELSON, W .L. | ||
| 245 | 0 | _aGUIDE TO REFINERY OPERATING COSTS; PROCESS | |
| 250 | _aS.E. | ||
| 260 |
_aEstados Unidos _bPETROLEUM PUBLISHING CO. _c1966 |
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