00537nam a2200157 a 450000100080000000500110000800800410001910000170006024500470007726000360012430000090016052001460016965000280031565300240034370000120036711564392018-09-05       1979    bl uuuu     u0uu1 u    #d1 aNUNES, P. F.  aAgricultural mechanization for SAT Brazil.  aPetrolina: EMBRAPA-CPATSAc1979  a3 p.  aTo study the present status of mechanisation in the SAT of Brazi1 and to define and design possib1e a1ternatives (approches) for improvement.  aMecanização Agrícola  aRegião semi-árida1 aLAL, H.