000 00308nam a2200133Ia 4500
008 160316s1991 xxu||||| |||| 00| 0 eng d
020 _a
100 _aUllman , Jeffrey D
245 _aPrinciples Of Data Base Systems
250 _a
260 _aNEW DELHI
_bGALGOTIA
_c1991
300 _a484
700 _a
_a
999 _c21014
_d21014