Kolman, Bernard. Discrete mathematical structures / By Bernard Kolman, Robert C Busby and Sharon Culter Ross. - 4th ed. - New Delhi : Prentice Hall of India PVt Ltd , 2000. - xiv,505p. ; 23 cm. ISBN: 8120320824 Subjects--Topical Terms: Fundamentals CountingLanguage and finite state machines Dewey Class. No.: 511.8 / KOLB