000 00271nam a2200121Ia 4500
008 221118b |||||||| |||| 00| 0 eng d
040 _cBGL
100 _aSingh, S.K.
245 0 _aData base System
260 _aNew Delhi
_bP earson
_c2011
300 _a867p
942 _cBB
999 _c39067
_d39067