00335nam a2200109 a 450000500170000002000150001708200210003210000440005324500750009726000330017230000200020520251203091657.0  a0306446030  a615.329,bD, lan  aLancini, Giancarlo, Lorenzetti, Rolando  aBiotechnology of antibiotics and other bioactive microbial metabolites  aNew YorkbPlenum Pressc1993  aviii,236p, 22cm