00343nam a2200133Ia 45000030006000000080041000060400015000471000021000622450067000832500010001502600020001605460012001800050017001920STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aDiama Schumacher  aEnergy crisis or opportunity an introduction to energy studies  aFirst  bMacmillanc1985  aEnglish20220125165502.0