000 00298nam a2200121Ia 4500
008 191201s2012 xx 000 0 und d
100 _aKHURANA, Rohit
245 0 _aData and file structure
250 _a2nd
260 _c2012
_bVikas Publication House
_aNEW DELHI
300 _a392
942 _2ddc
_cBK
999 _c7825
_d7825