00298nam a2200109Ia 450000500170000000800410001708200160005810000220007424500400009626000440013630000080018020260224040948.0260224s9999||||xx |||||||||||||| ||und||  a581.234 SRE  aSreenivasulu, P.  0aPhysiology of virus infected plants  aNew Delhi: South Asian Publishersc1989  a164