000 00319nam a2200133Ia 4500
008 160316s1980 xxu||||| |||| 00| 0 eng d
020 _a
100 _aE.B. Welch
245 _aEcological Effects Of Waste Water
250 _a1st
260 _aLONDON
_bCAMBRIDGE UNIVERSITY PRESS
_c1980
300 _a337
700 _a
_a
999 _c11627
_d11627