Rosen, Kenneth H Discrete mathematics and its applications / - 4th ed - Boston : WCB/McGraw-Hill, c1999 - xxii, 678 p. : ill. ; 27 cm ISBN: 0072899050 (acidfree paper) Subjects--Topical Terms: MathematicsComputer science Dewey Class. No.: 511 JAS 1999 C279 Or.