00292nam a2200097Ia 4500008004100000082001700041100004200058245004200100260004400142300000800186140113s9999    xx            000 0 und d  a632.937   L4  a"Baker, Kenneth.F. & Cook, James. R."  aBiological control of plant pathogens  a1974bW.H.Freeman & Co.cSan Franscisco  a433