000 00351 a2200133 4500
020 _a8122403018
080 _a628.39
_bRAO
100 _aRao, C.S
245 _aEnvironmental pollution control engineering
260 _aNew Delhi
_bNew Age
_c1997
300 _aviii, 431p.
650 _a628.39
_xPollution control engineering
942 _cBK
_k628.39 RAO
999 _c349995
_d349995