00274nam a2200109Ia 4500008004100000082002300041100001400064245003300078250000900111260003600120300000800156240913s9999||||xx |||||||||||||| ||und||  aGS    660.6  DUB/A  aR C Dubey 2aA text book of biotechnology  aNULL  bS Chand and CoaNew Delhic1996  a357