00644    a2200193   4500020001800000050001800018100002800036245009800064250001600162264004600178300001800224500004000242650002100282650002300303650003300326700003500359700002900394700002700423  a9783823615712  aS544 HAN 2009  aHoffman, Volkereeditor  aHandbook: Rural extension Volume 1 :bbasic issues and concepts /cVolker Hoffmann- - (et al)  a3rd edition  aWeikersheim :bMargraf Publishers,c2009.  a251p. :bill.  aIncludes bibliographical references  aRural extension.  aRural development.  aAgricultural extension work.  aGerster-Bentaya, Mariaeeditor  aChristinck, Anjaeeditor  aLemma, Mamushaeeditor