00463naa a2200181 a 450000100080000000500110000800800410001910000160006024500940007626000060017065000110017665000210018765300110020865300130021965300170023265300210024977300110027010738961993-12-03               bl ---       0--  u    #d1 aFONSECA, R.  aAs grandes zonas ecologicas do Nordeste, suas tecnologias e produtividades agropecuarias.  c0  aBrazil  aecological zones  aBrasil  aNordeste  aNortheastern  aZonas ecologicas  ts.n.t.