00342nam a2200121Ia 450000500170000000800410001702000170005805000210007510000160009624500650011226000250017765000180020220251229124524.0251229s9999    xx            000 0 und d  a929058000310  aSPEC SB 736 .G74  aHylock,J.W. 0aGuidelines  for Diagnostic Work in Plant Virology.cW Hylock  aTaipeib AVRDCc1984  aPlant Viruses