00269nam a2200121Ia 45000030006000000080041000060400015000471000015000622450032000772600009001095460012001180050017001300STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aNunn, P.T.  aExercises in algebra part I  c1920  aEnglish20220125165923.0