00286nam a2200109Ia 4500008004100000041000800041082001900049100002000068245003800088260004200126300000800168211209s1991    xx            000 0 und d  aeng  a005.74 N91 DES  aDESAI, BIPLIN C  aINTRODUCTION TO DATABASE SYSTEMS   aNEW DELHIbGALGOTIA PUBLICATIONc1991  a819