000 00274nam a2200109Ia 4500
008 230411s9999 xx 000 0 und d
082 _a005.14
_bALL
100 _a ALLEN (SHARON)
245 0 _aBEGINING RELATIONAL DATA MODELING
260 _bA PRESS A
_aNew Delhi
942 _cBK
999 _c3166
_d3166