000 00262nam a22001097a 4500
003 OSt
008 230826b |||||||| |||| 00| 0 eng d
082 _a620.8
_bR18T
100 _aVenugopal, Rao.
245 _aTextbook of Environmental Engineering
942 _2ddc
_cBK
999 _c30093
_d30093