00378nam a2200145Ia 4500008004100000020001500041082001800056100001600074245002800090260005100118300000800169650001600177650001400193653002500207170901s1973    xx            000 0 und d  a0471129151  a001.642bC11D  aCagan, Carl 0aData Management Systems  aLos AngelesbMelville Publishing Companyc1973  a141  aGneralities  aKnowledge  aComputer programming