00381nam a2200121Ia 4500008004100000040001700041082002500058100001300083245006200096260003700158300001400195650005000209190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta630.715bR263S  aRay, G L 0aStudies in agricultural extension and managementcG L Ray  aDelhibMittal Publicationsc1989  axi, 162p.  aAgricultural extension work-Government policy