000 00294nam a2200133Ia 4500
100 _aUllman/ J.O.
942 _cBK
654 _aDatabase systems
245 _aPrinciples of Database Systems
260 _bGalgotia Pub
_aNrew delhi
_c1993
082 _a5.74
546 _aENGLISH
999 _c22130
_d22130