00364nam a2200145 a 450000100080000000500110000800800410001910000470006024500340010726000210014130000100016265000160017265000130018865000170020117372431993-05-26       1979    bl uuuu      00u1 u    #d1 aESTADOS UNIDOS. Department of Agriculture.  aAgricultural statistics 1979.  aWashingtonc1979  a603p.  aAgricultura  aEconomia  aEstatística