PineWikiBooks on reserve at the EngineeringAndAppliedSciencesLibrary.
1. Course textbook
Norman L. Biggs, Discrete Mathematics, second edition. Oxford University Press, 2002. ISBN 0 19 850717 8. QA76.9 M35 B54 2002.
2. Other discrete math textbooks
Kenneth H. Rosen. Discrete Mathematics and Its Applications, Fifth Edition, McGraw-Hill, 2003. QA39.3 R67X 2003 (RosenBook)
Ronald L. Graham, Donald E. Knuth, and Oren Patashnik. Concrete Mathematics: A Foundation for Computer Science. Addison-Wesley, 1994. QA39.2 G733X 1994 (ConcreteMathematics)
3. Proofs and problem-solving
George Polya. How to Solve It: A New Aspect of Mathematical Method. Princeton University Press, 2004. QA11 P66 2004 (HowToSolveIt)
Daniel Solow. How to Read and Do Proofs: An Introduction to Mathematical Thought Processes. Wiley, 2005. QA9.54 S65X 2005 (SolowBook)