00546naa a2200193 a 450000100080000000500110000800800410001910000140006024501000007426000090017465000150018365000140019865000220021265000150023465300140024965300110026365300180027477300600029217935432017-03-30 1996 bl --- 0-- u #d1 aPRETI, F. aMain topics and recent experiences for environmental monitoring and modeling diffuse pollution. c1996 amonitoring apollution aLençol Freático aPoluição aModelling aModelo aMonitoramento tWater Science & Technologygv.33, n.4/5, p.63-72, 1996.