Lipschutz, Seymour. Theory and Problems of Discrete Mathematics / by Seymour Lipschutz & Marc Lars Lipson. - 2nd ed / - New Delhi : Tata McGraw-Hill Publishing Co.Ltd. , 2001 - 528p : ISBN: 0-07-463710-X Subjects--Topical Terms: Mathematics Dewey Class. No.: B / P1;1