Lipschutz, Seymour. Discrete mathematics. by Seymour Lipschutz. - 3rd ed. - New Delhi, Tata McGraw Hill, c1997 - various pages. ill. 24 cm. ISBN: 9780070669123 Subjects--Topical Terms: Mathematics. LC Class. No.: 005.1 / LID Dewey Class. No.: 005.1 / LID