01019cam a2200289 i 4500999001900000001000800019003000500027005001700032008004100049010001700090020002800107040001800135050001900153082001700172100003600189245010300225260007100328300003400399500002000433501000800453504003200461650004100493700002200534906004500556942001800601952011000619  c330194d3301942263860NUST20170613120046.0780914s1980    enka     b    001 0 eng    a   78011371   a0521224950.a0521295254  aDLCcDLCdDLC00aQH545.S49bW4400a574.5263 WEL1 aWelch, E. B.q(Eugene B.)9254110aEcological effects of waste water /cE.B. Welch ; with hydrographic characteristics by T. Lindell.  aCambridge [Eng.] ;aNew York :bCambridge University Press,c1980.  axii, 337 p. :bill. ;c24 cm.  aIncludes index.  aH.B  aBibliography: p. [310]-327. 0aSewagexEnvironmental aspects.925421 aLindell, T.92543  a7bcbccorignewd1eocipf19gy-gencatlg  2ddccBKkIESE  00102ddc40708NFICaIESEbIESEcGENd2017-06-13l0o574.5263 WELpIESE-319r2017-06-13w2017-06-13yBK