000 00377 a2200145 4500
020 _a81-224-0301-8
080 _a628.39
_bRAO
090 _c1978
_d1978
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 _c332201
_d332201