00329nam a2200133 a 450000100080000000500110000800800410001910000160006024500400007626000290011630000090014565300190015465300220017311129662000-10-13       1984    bl uuuu     u0uu1 u    #d1 aOLINGER, G.  aExtensao rural e politica agricola.  aBrasilia: Embraterc1984  a44p.  aEXTENSAO RURAL  aPOLITICA AGRICOLA