00286nam a2200109Ia 450000500170000000800410001702000150005805000200007324500380009326000230013165000220015420251229190902.0251229s9999    xx            000 0 und d  a0947946195  aQH 442.2 .D52   0aDNA cloningba practical approach  aOxfordb IRLc1985  aMolecular Cloning