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_c135.00 _a81-224-1009-X |
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| 040 | _aBangabasi College Library | ||
| 041 | _aEnglish | ||
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_aENV.SC 614.77 _bGPn97 |
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| 100 | _aGOEL, P. K | ||
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_aWater pollution: _bcauses, effects and control _cP.K.Goel |
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_bNew Age International _aNew Delhi _c1997 |
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| 300 | _ax269p. | ||
| 650 | _aWATER POLLUTION | ||
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