000			00412nam a2200157Ia 4500
008			191210s9999||||xx |||||||||||||| ||und||
020			_a201824582
040			_ben.
050			_bD 5
080			_a681.3
245		3	_aAn introduction to database systems / _cC. J Date
250			_a6a. ed.
260			_aMassachusetts : _bAddison-Wesley, _c1995
300			_a839 p. : _b839 p. ; fig. ; _c24 cm.
942			_cBK
999			_d4451 _c4451