003500000a22001330004500060000800000082001500008100001800023100001500041245002800056250000600084260004500090260000900135650007200144  a100  a576.64 BIS  aAmita, Biswas  aBiswas,  B  aIntroduction to viruses  a3  aNewdelhi, Vikas Publishing House Pvt Ltd  c1976  aViruses/ Morphology- Architecture of viruses/ Physiology of viruses