00310nam a2200121Ia 4500008004100000082001300041100002300054245003000077250001200107260004200119300001000161650001700171140113s9999    xx            000 0 und d  a576.8 K8  a"Burrows, William"  aText book of microbiology  a9th Ed.  b"London : W.B.saunders company, 1968"  a974p.  aMicrobiology