00298nam a22001097a 4500020001500000082001700015100001700032245006200049260002800111300000800139650004100147  a8127218855  a632.3 SIN/VI  aDr.S J Singh  aVirus And Phytoplama Diseases Of Vegetable Crops In India  aLudhianabKalyanic2004  a247  avirus diseasesaphytoplasma diseases