00284nam a2200109Ia 4500008004100000082001100041100002400052245002000076260004800096300001000144650002000154140113s9999    xx            000 0 und d  a632 H9  a" Butler, Edwin J."  aPlant pathology  b"London : Macmillan and co., limited, 1949"  a979p.  aPlant pathology