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| 020 | _a0080238637 | ||
| 037 | _cGeneral Book | ||
| 040 |
_aRTL _cRTL _beng |
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| 041 |
_2eng _aeng |
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| 082 | _aX9(HZ551):77.1.N7, L9.1-.2 | ||
| 100 |
_aWali Mohan K Ed. _9322812 |
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| 245 | 0 | _aEcology and coal resource development. | |
| 260 |
_aNew York _bPergamon press USA _c1979 |
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| 300 |
_a1091p. _ccm. |
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| 490 | _vV2 | ||
| 650 |
_aMinings _9234290 |
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_hX9(HZ551):77.1.N7, L9.1-.2 _cGB _2CC |
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_c632140 _d632140 |
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