00271nam a2200121Ia 45000030006000000080041000060400015000471000021000622450017000832600020001005460012001200050017001320STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKunjipaulo, A.O.  aTrigonometry  bMacmillanc1961  aEnglish20220125170006.0