00386nam a2200145Ia 4500008004100000082001600041100001800057245003400075260004100109300000800150650002300158650001800181653001900199700002200218170901s1957    xx            000 0 und d  a581.2bS76P  aStakman, E.C. 0aPrinciples of Plant Pathology  aNew YorkbRonald Press Companyc1957  a581  aBotanical sciences  aPure Sciences  aPlant diseases  aHarrar, J. George