000 | 00341nam a2200133Ia 4500 | ||
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008 | 220919s9999 xx 000 0 und d | ||
082 | _bDUG | ||
100 | _aDUGGAL, K.N. | ||
245 | 0 | _aELEMENTS OF ENVIRONMENTAL ENGINEERING | |
260 |
_bS.CHAND AND COMPANY PVT. LTD., NEW DELHI _c2012 |
||
300 | _a451 | ||
650 | _aChemistry | ||
942 | _cBK | ||
999 |
_c151275 _d151275 |