00461nam a22001577a 4500003000400000008004100004020001800045082001900063100001900082245004000101260004200141300001100183650004300194650003400237650003200271OSt220909b        |||||||| |||| 00| 0 eng d  a9789327257472  a630.715 bS61E  aSingh, Ranjit   aExtension education/by Ranjit Singh  aLudhiana:bKalyani Publishers,c2016.  a405 p.  a Agriculture and related technologies   aTechnology (Applied sciences)  aAgricultural extension work