00518nam a2200169 a 450000100080000000500110000800800410001910000190006024500660007926001250014530000120027065000160028265000150029865000150031365000090032865300110033712382521995-06-19       1987    bl uuuu      00u1 u    #d1 aGASQUES, J. G.  aThe effects of drought on agricultural production and yields.  aIn: MAGALHAES, A.R. et al. The effects of climatic variations on agriculture in Northeast Brazil. Laxenburg: IIASAc1987  ap.69-96  aAgricultura  aProdução  aRendimento  aSeca  aEfeito