00313nam a2200121Ia 45000030006000000080041000060400015000471000025000622450066000872600009001535460012001620050017001740STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aFishbein, L.; Others  aChemical mutagens environmental affects on biological systems  c1970  aEnglish20220125170444.0