00293nam a2200097Ia 4500008004100000082001700041100002500058245006500083260003900148300000800187140113s9999    xx            000 0 und d  a581.238   J1  a"Smith, Kenneth, M."  a"Recent advances in the study of plant viruses, 2nd edition"  a1951bJ & A Churchill Ltd.cLondon  a300