00297nam a2200133Ia 45000030006000000080041000060400015000471000016000622450037000782500010001152600009001255460012001340050017001460STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aRoyle, H.A.  aLaboratory exercises in genetics  aFfith  c1971  aEnglish20220125170339.0