000 00327nam a2200121Ia 4500
008 240913s9999||||xx |||||||||||||| ||und||
082 _a540 DAR/A
100 _aBy S S Dara
245 2 _aA Text Book of Environmental Chemistry and Pollution Control
250 _aNULL
260 _bS Chand and Co
_aNew Delhi
_c1997
942 _cBKS
999 _c6107
_d6107