00397nam a22001455a 450000100070000000500170000700800410002402000170006504000130008208200230009510000210011824500640013926000370020330000110024016924820181128091432.0980729s1997    enk           000 0 eng    a0421526106 :  cPKPLaUMT  a344.4104632bBLA-A1 aBlackhurst, John10aAgricultural pollution /cJohn Blackhurst and Michael Payne  aLondon :bSweet & Maxwell,c1997  a367 p.