00285nam a2200121Ia 45000030006000000080041000060400015000471000029000622450021000912600022001125460012001340050017001460STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aScientific American Book  aEnergy and power  bW.H.Freemanc1971  aEnglish20220125170119.0