000 00270nam a2200109Ia 4500
008 201009s9999 xx 000 0 und d
100 _aYadav, P.K
245 0 _aData Base Management System
260 _bNew Delhi,S.K.Kataria & sons
_c2017
300 _c274
942 _cBK
999 _c16135
_d16135