00278nam a2200097Ia 4500008004100000082001800041100002200059245005100081260004000132300000800172140113s9999    xx            000 0 und d  a632(091)   M1  a"Ainsworth, G.C."  aIntroduction to the history of plant pathology  a1981bCambridge Univ. PresscLondon  a315