000 00460nam a22001817a 4500
999 _c158836
_d158836
001 229252020
003 OUSL
005 20200908101051.0
008 200117b ||||| |||| 00| 0 eng d
020 _a0198563701
040 _cousl
_dousl
_aousl
_bEng.
041 _hEng.
082 _a628.162
_bG61
100 _940878
_aGray, N.F.
245 _aBiology of watewater treatment
260 _aOxford :
_bOxford University Press ,
_c1989.
942 _2ddc
_cBK