00494naa a2200205 a 450000100080000000500110000800800410001910000210006024500420008126000090012365000100013265000100014265000190015265000120017165000140018365300180019765300130021565300120022877300480024017586021997-12-08       1997    bl uuuu     u00u1 u    #d1 aMAROUELLI, W. A.  aDoencasbo perigo pode estar na agua.  c1997  awater  aÁgua  aContaminação  aDoença  aQualidade  aContamination  aDiseases  aQuality  tHortinforme, Brasiliagn.8, p.3, out. 1997.