00385nam a2200133Ia 4500008004000000020001800040082001500058100004300073245006500116250000500181260003300186300000800219650002400227210210b2001   xxu||||| |||| 00| 0 eng d  a1 55581 176 0  a620.8 KRER  aKREUZER (Helen) and MASSEY (Adrianne).  aRecombinant DNA and biotechnology a guide for students. Ed.2  a  aWashington.bASM Pressc2001  a431  aDNA Biotechnology