000 00305nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aSchleif (Robert F) and Wensink (Pieter C)
245 0 _aPractical methods in molecular biology
260 _bS.V
260 _c1981
365 _b579.6
942 _cBK
999 _c211203
_d211203