00318nam a2200109Ia 4500008004100000020001800041100001700059245005900076260003700135650001900172700001700191190829s9999||||xx |||||||||||||| ||und||  a9788122404316  aBasu, A. N.  4aThe Essentials of Viruses, Vectorss And Plant Diseases  bWiley Eastern aNew Delhi c1993  aPlant Diseases  aGiri, B. K.