00441    a2200145   4500020001500000082001500015100002000030245005000050250001300100260005700113300001900170650004900189650003600238700002100274  a8123904029  a632.9bMAR  aMartin, Hubert   aThe scientific principles of crop protection   a7th ed.   aNew DelhibCBS Publishers & Distributorsc1983g1983  aix,486p.c22cm  aGeneral topics of pests and diseases control  aPlant injuries, diseases, pests  aWoodcock, David