003960000a22001330004500060000800000082001400008100001600022100001600038245005700054260004200111260000900153300000800162650009200170  a100  a632.3 GRA  aGram, Ernst  aWeber, Anna  aPlant Disease:  in Orchard, Nursary and garden crops  aLondon, Macdonald & co Publishers Ltd  c1952  a618  aPlant Diseases/ Ochard Plant diseases/   Nursary plant Diseases/ Garden plant diseases/