00320nam a2200121Ia 4500020001800000082001600018100002000034245003700054250001200091260002500103650005000128700002000178  a9789332549593  a511.6 KOL/D  aKolman, Bernard 0aDiscrete mathematical structures  a6TH ED.  bPearsonaNoidac2015  aMathematics; Discrete mathematical structures  aBusby, Robert C