00293    a2200121   4500020001500000082001500015100001900030245001800049250001200067260005400079300002000133650001800153  a0521586941  a660.6bSMI  aSmith, John E.  aBiotechnology  a3rd ed.  aCambridgebCambridge University Pressc1981g1996  axvi,236p.c21cm  aBiotechnology