00434nam a22001577a 4500003000400000008004100004082001900045100002200064245002500086250001300111260004100124300001100165650004200176650003400218650002400252OSt220531b        |||||||| |||| 00| 0 eng d  a630.715 bR26E  aReddy,  A. Adivi   aExtension education   a3rd. ed.  aBapatla bSree Lakshimi Press c1978  a330 p.  aAgriculture and related technologies   aTechnology (Applied sciences)  aExtension Education