00265nam a22001217a 4500020001500000020001800015082001500033100004700048245001700095250000600112260001700118300000800135  a0074623206  a9780074623206  a579 PEL/MI  aMichel J PelczaraE C S ChanaNoel R Krieg  aMicrobiology  a5  bMc Graw Hill  a918