000 00286nam a2200121Ia 4500
008 220821s2011 xx 000 0 eng d
100 _aKORTH, HENRY F.
245 0 _aDATABASE SYSTEM CONCEPTS
250 _a6TH
260 _bMC GRAW HILL
_c2011
300 _a1349
942 _2ddc
_cBTECH
_012
999 _c2107
_d2107