00364nam a2200145 a 450000100080000000500110000800800410001910000280006024500410008826000190012930000090014865300160015765300260017365300190019911129472000-10-13       1980    bl uuuu     u0uu1 u    #d1 aEMBRAPA (Brasilia, DF).  aNotas sobre a difusao de tecnologia.  aBrasiliac1980  a27p.  aAGRICULTURA  aDIFUSAO DE TECNOLOGIA  aEXTENSAO RURAL