00434nam a2200169 a 450000100080000000500110000800800410001910000170006024500730007726000330015030000100018365000170019365000140021065300110022465300130023570000160024818213612013-02-09       1972    bl uuuu      00u1 u    #d1 aCOSTA, J. B.  aEconomics of subsidizing fertilizer consumption in northeast Brazil.  a[Brasília, DF]: USAIDc1972  a65 p.  aFertilizante  aSubsídio  aBrasil  aNordeste1 aTHOMSEN, J.