00338nam a2200133Ia 4500008004100000082001100041100002600052245002000078250001200098260003800110300001300148600002400161650001900185140224s9999    xx            000 0 und d  a632 J7  aWalker, John Charles.  aPlant pathology  a3rd ed.  aBombaybTATA Mc Graw-Hillcc 1957  axi,819p.  aJohn Charles Walker  aPlant diseases