00299nam a2200121Ia 4500008004100000082001100041100001700052245003500069260002800104300001000132600001600142650001900158140224s9999    xx            000 0 und d  a632 L2  aTarr, S.A.J.  aPrinciples of plant pathology.  aLondonbMacmillanc1972  a632p.  aS.A.J. Tarr  aPlant diseases