000 00421nam a2200157Ia 4500
008 221007s9999 xx 000 0 und d
020 _a9788122418354
082 _a628
_bRAO
100 _aRao,C.S
245 0 _aEnvironmental Polution Control Engineering
250 _a2nd rev.
260 _aNew Age, New Delhi
_bNew Age, New Delhi
_c2008
300 _axiv,424
650 _aPolution Control Engineering
942 _cBK
999 _c635
_d635