00353    a2200121   4500020001500000082001500015100002200030245005200052260005700104300002100161650001300182650003600195  a8185860076  a632.3bSCH  aSchumann, Gail L.  aPlant diseasesbtheir biology and social impact  aLucknowbInternational Book Distributingc1991g1991  aviii,397p.c24cm  aDiseases  aPlant injuries, diseases, Pests