000			00309nam a22001337a 4500
008			190305b xxu||||| |||| 00| 0 eng d
020			_a0816238677
041			_aeng
080			_23rd _a338
100			_a53
101			_aMEN
245			_aIntroduction to Operations research _cHillier,F.S
942			_2udc _cBK
999			_c54559 _d54559