00277nam a2200121Ia 45000030006000000080041000060400015000471000020000622450013000822600031000955460012001260050017001380STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aPearson, H.H.W.  aGnetales  bCambridge universityc1929  aEnglish20220125170412.0