Rosen, Kenneth H. Discrete mathematics and its applications / Kenneth H. Rosen. - 4th ed. - Boston : WCB/McGraw-Hill, c1999. - xxii, 678, [123] p. : ill. ISBN: 0071167560 0072899050 (hbk.) Subjects--Topical Terms: MathematicsComputer science--Mathematics LC Class. No.: QA39.2 / .R813 1999