00413nam a2200133Ia 4500008004100000082001700041100001900058245004600077260004400123300001500167600004200182600002300224650003200247140224s9999    xx            000 0 und d  a632.008.2 L9  aZadoks, Jan C.  aEpidemiology and plant disease management  aNew YorkbOxford University Pressc1979  axiii,427p.  a Jan C.Zadoks (and) Richard D.Sehein.  aSehein, Richard D.  aEpidemiology,Plant diseases