00473nam a2200157 a 450000100080000000500110000800800410001924500900006026000700015030000110022065000160023165000280024765000100027565000100028565000200029510181982014-02-22       1980    bl uuuu     u00u1 u    #d  aPriorities for alleviatingbsoil-related constrints to food production in the tropics  aManila (Philippines): International Rice Research Institutec1980  a468 p.  aCARTOGRAFIA  aCLASIFICACION DE SUELOS  aCLIMA  aSUELO  aTIPOS DE SUELOS