00852nam a2200181 a 4500008004100000020001500041245012800056260007600184300002400260500005800284500017000342500001200512650005800524700002300582700002100605700002400626050002000650980402s1997 it a bf i000 0 eng  a817035408000aImproving agricultural extension :ba reference manual /cedited by Burton E. Swanson, Robert P. Bentz, Andrew J. Sofranko. aRome :bFood and Agriculture Organization of the United Nations,c2005. aix, 220 p.:bill. ; aUpdated ed. of: Agricultural extension. 2nd ed. 1984. a"Prepared under the guidance of the Extension, Education, and Communication Service, Research, Extension, and Training Division, Sustainable Development Department." a"M-67." 0aAgricultural extension workxHandbooks, manuals, etc.1 aSwanson, Burton E.1 aBentz, Robert P.1 aSofranko, Andrew J.00aS544b.I46 1997