000 00290nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a624
100 _aC S Rao
245 0 _aEnvironmental Pollution Control Engineering
250 _a2
260 _bNew Age, New Delhi
_c2006
942 _cBK
999 _c31708
_d31708