Kolamn, Bernard. Discrete Mathematical structures for computer Science / Bernard Kolman and Robert C. Busby. -- 2nd ed. -- London : Prentice -Hall 1987 xiv, 464 p. 21 cm. Includes index. ISBN: 971617005x Subjects--Topical Terms: Discrete Mathematics - Computer ScienceDewey Class. No.: GC 004.0151 K334 1987