00622nam a2200181 a 450000100080000000500110000800800410001910000190006024500480007925000110012726000210013830000110015952001960017065000170036665000270038365000140041065300160042410040082014-08-28       1984    bl uuuu      00u1 u    #d1 aSWANSON, B. E.  aAgricultural extensionba reference manual.  a2. ed.  aRoma : FAOc1984  a262 p.  aEvolution of agricultural extension; The framework for agricultural extension; Improving agricultural extension programmes; Strengthening the structure and function of agricultural extension.  aAgricultural  aAgricultural extension  aExtension  aAgricultura