00334nam a2200121Ia 4500100002100000650002500021366000700046654001300053245008100066260003300147082002000180546001200200  aRosen/Kenneth H   aDiscrete Mathematics  f20  adiscrete  aDiscrete Mathematics and it applications with combinatorics and graph theory  bMcGraw HillaNew Delhic2007  a511.24/ROSbROS  aENGLISH