Rosen, Kenneth H Discrete mathematics & its applications : with combinatorics and graph theory / Kenneth H Rosen. - 7th ed. - New Delhi : McGraw Hill Education, c2007 [2013]. - xxviii, 843 p. : 24 cm. Includes Index. ISBN: 978 0 07 068188 0 Subjects--Topical Terms: MathematicsDiscrete mathematics Dewey Class. No.: 511 / ROD