Grimaldi, Ralph P. Discrete and combinatorial mathematics : an applied introduction / by Ralph P Grimaldi and B.V. Ramana. - 5th ed / . - Delhi : Pearson Education Asia , 2007. - 1026p. : figures ; 25cm . Includes index ISBN: 9788177584240 RS535.00 Subjects--Index Terms: MATHEMATICS Dewey Class. No.: 511.6 / GRI/D