00468nam a2200169Ia 4500082002500000100001700025245005200042260002300094300001500117500000500132690000600137700000500143952010600148964001700254921001000271999001700281  a338.160141bSi617.KC  aSingh, Y. P.  aKey-communicators of agricultural innovationsb  aAgrabSatishc1973  axvi, 204p.  a  a   a  00104070aISIbISId1998-09-23l0o338.160141 Si617.KCpDP6924r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a13360  c13360d13360