00377nam a2200145Ia 4500008004100000020001500041082001800056100002200074245002300096260004500119300000800164650001800172650001800190653002300208170901s1987    xx            000 0 und d  a8185198330  a576.139bF88M  aFreifelder, David 0aMicrobial Genetics  aNew DelhibNarosa Publishing Housec1987  a601  aLife sciences  aPure Sciences  aMicrobial genetics