00469nam a2200157Ia 4500008004100000020001500041082001800056100002300074245002700097260005300124300000800177650004100185650003400226653003200260700001900292170901s1996    xx            000 0 und d  a8123905769  a630.715bB20A  aBan, A. W. Van den 0aAgricultural Extension  aNew DelhibCBS Publishers and Distributorsc1996  a294  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural extension work  aHawkins, H. S.