00281nam a2200121Ia 45000030006000000080041000060400015000471000029000622450030000912600009001215460012001300050017001420STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAlexis Leon; Mathew Leon  aIntroduction to computers  c1999  aEnglish20220125170159.0