000 00423nam a22001817a 4500
003 OSt
020 _aNA
040 _c0
082 _222
_a628.2
100 _aPunmia, B. C ...[et al.].
245 _aEnvironmental engineering :
_bwaste water engineering /
260 _bLaxmi Publications,
_cc2005.
300 _a0
_bill. ;
400 _av.2
700 _aJain, Arun K.
700 _aJain, Ashok K.
942 _2ddc
_cCIVIL
999 _c4454
_d4454