000			00294 a2200133 4500
020			_a9780070648241
082			_a519.854 ROS
245			_aDiscrete mathematics and its applications
250			_a6/e
260			_bTMH _c2007
300			_av,787 p, i-23
942			_cBK
100			_aRosen Kenneth H
999			_c210 _d210