000 00325nam a22001337a 4500
003 OSt
008 240215b |||||||| |||| 00| 0 eng d
082 _a574.5263
_bW28E
100 _aWelch,E.B.
245 _aEcological effects of waste water
260 _acambridge university press
_c1980
300 _a337
942 _2ddc
_cBK
999 _c37160
_d37160