00275nam a2200097Ia 4500008004100000100002200041245003900063250001300102260003700115650002500152190829s9999||||xx |||||||||||||| ||und||  aSmith, Kenneth M. 2aA Textbook of Plant Virus Diseases  a2ND ED.   bJ. & A. ChurchillaLondon c1957  aPlant Viral Diseases