00424nam a2200157 a 450000100080000000500110000800800410001910000270006024500690008726000280015630000120018465000120019665000260020865000090023465300230024315667612003-04-04       1997    bl uuuu     u00u1 u    #d1 aCIAT (Cali, Colombia).  aAnnual report 1997 - Project PE 2bconfronting soil degradation.  aCali: CIAT, 1997.c1997  a124 p.   aCerrado  aConservação do Solo  aSolo  aDegradacao do solo