00598naa a2200217 a 450000100080000000500110000800800410001910000210006024500750008126000090015665000130016565000110017865000250018965000260021465300170024065300110025765300180026870000190028670000240030577300510032917968151999-06-11       1971    bl ---       0--  u    #d1 aSANTOS, U. de M.  aA composicao quimica do Rio Preto da Eva-Amazonica. Estudo preliminar.  c1971  aAmazonia  aBrazil  achemical composition  aComposição Química  aAgua natural  aAmazon  aNatural water1 aSANTOS, A. dos1 aBRINKMANN, W. L. F.  tCiencia e Culturagv.23, n.5, p.643-646, 1971.