000			00261nam a2200097Ia 4500
020			_a978-007-128959-7
942			_cBK
245			_aDatabase system concepts .-6th ed. .-978-007-128959-7
260			_a New York _bMcGraw Hill Publishing _c2011
300			_axxvi,1349
999			_c425924 _d425924
041			_aeng