00305nam a2200133Ia 45000030006000000080041000060400015000471000023000622450038000852500010001232600009001335460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aCharles Bettelheim  aStudies in the theory of planning  aFirst  c1967  aEnglish20220125165625.0