00340nam a2200121Ia 45000030006000000080041000060400015000471000041000622450077001032600009001805460012001890050017002010STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aScientific American Resource Library  aScientific american resource library reading in the earth science Vol II  c1969  aEnglish20220125170418.0