00283nam a2200109Ia 4500008004100000082001700041100001400058245003700072250001200109260004400121300000800165240913s9999||||xx |||||||||||||| ||und||  a660.6  KUM/M  aH D Kumar 0aModern concepts of biotechnology  a2nd Ed.  bVikas Publishing HouseaNew Delhic2003  a424