00333    a2200121   4500020001500000082001500015100002300030245003500053260005300088300002100141650001300162650003600175  a8123901984  a632.3bVID  aVidhyasekaran, P.   aPrinciples of plant pathology   aDelhibCBS Publishers & Distributorsc1993g1993  aviii,165p.c24cm  aDiseases  aPlant injuries, diseases, pests