00285nam a2200121Ia 4500008004100000020001800041082001300059100002500072245002800097250000600125260002300131300000900154250402s9999    xx            000 0 und d  a9789390727506  a4bSIL-D  aSILBERSCHATS ABRAHAM 0aDATABASE SYSTEM CONCEPT  a7  bMC GRAW HILLc2024  a1344