2. D. A. Marcus, Combinatorics: A Problem Oriented Approach (Classroom Resource Materials), $29.00, Paperback (September 1998), Mathematical Assn of Amer; ISBN: 0883857103.

3. George E. Martin (GM, GW), Counting: The Art of Enumerative Combinatorics, $39.95, Springer-Verlag, 2001, ISBN 0-387-95225-X, hardcover.

4. A. Slomson (CU, QA164 .S57 1991), Introduction to Combinatorics, Chapman & Hall/CRC, $49.95. (Was used by me. I have a copy.)

5. M. Bona (CU), A walk through combinatorics. An introduction to enumeration and graph theory. With a foreword by Richard Stanley. World Scientific Publishing Co., Inc., River Edge, NJ, 2002. xviii+406 pp. $70.00, paperback $42.00, ISBN 981-02-4900-4.

6. Chen Chuan-Chong and Koh Khee-Meng (GM), Principles and Techniques in Combinatorics, 312 pp., World Scientific Pub Co; (September 1992), ISBN: 9810211392, $21.

Ronald L. Graham, Donald E. Knuth, and Oren Patashnik (CU, QA39.2 .G733 1994), Concrete mathematics : a foundation for computer science Edition: 2nd ed.Reading, Mass. : Addison-Wesley, c1994. xiii, 657 p. : ill. ; 24 cm. ISBN: 0201558025  0201580438.

Handbook of combinatorics, edited by R. L. Graham, M. Grotschel, and L. Lovasz, (CU, QA164 .H33 1995), Amsterdam ; New York : Elsevier : Cambridge, Mass. : MIT Press, 1995.

D. E. Knuth, The art of computer programming, v. 1. Fundamental algorithms,  Second ed., Reading, Mass., Addison-Wesley Pub. Co., 1973.

L. Lovasz (AU, GM, GW), Combinatorial problems and exercises, North-Holland Publishing Co., Amsterdam, Second Edition, 1993.

J. Matousek and J. Nesetril (CU, QA39.2 .M3935 1998), Invitation to Discrete Mathematics, Oxford University Press, 1998.

G. Polya, R. E. Tarjan, D. R. Woods (GA, GM), Notes on Introductory Combinatorics, $39.50, Paperback Rep edition (June 1990), Birkhauser; ISBN: 3764331704.

Fred S. Roberts (CU, QA164 R6), Applied Combinatorics, $88.00, Hardcover - 640 pages 1 edition (February 15, 1984), Prentice Hall; ISBN: 0130393134. Second edition is coming in January 2002 for $93.00. (Used by L. Somer.)

R. Stanley (CU, QA164.8 S73), Enumerative Combinatorics, vol. I, Wadsworth & Brooks/Cole, Monterey, California, 1986.

Alan Tucker, Applied Combinatorics, $99.40, Hardcover 4th edition (July 2001) John Wiley & Sons; ISBN: 047143809X.

Ian Anderson (CU, QA248 .A657 1987), Combinatorics of finite sets, Oxford [Oxfordshire] : Clarendon Press; New York : Oxford University Press, 1987. Out of print.

Ian Anderson (CU, QA39.2.A533), A First Course in Discrete Mathematics, First Edition, Springer Undergraduate Mathematics Series, $29.95, 208 pages paperback, ISBN: 1-85233-236-0, 2000.

Norman L. Biggs (CU, QA76.9.M35 B54 1985) Discrete mathematics, Oxford [Oxfordshire] : Clarendon Press  $49.95, (Used: $29.00),  Revised edition (July 1993); ISBN: 0198534272

V. Bryant (CU, QA164 .B82 1993), Aspects of Combinatorics. A Wide-ranging Introduction (Suitable for undergraduate course use. To request an examination copy, click here.) 1993,  274 Pages,  Paperback, ISBN 0-521-42997-8, $27.95.

Kenneth P. Bogart (CU, QA164 .B63 2000), Introduction to Combinatorics, 3rd edition, Academic Press, 0-12-110830-9, $77.95.

Bela Bollobas (CU, QA164 .B65 1986), Combinatorics,  $24.95, (Used Price: $18.71), Paperback - 177 pages (December 1986), Cambridge Univ Pr (Short); ISBN: 0521337038.

Richard A. Brualdi, Introductory Combinatorics, $89.32, (Used Price: $65.63) Hardcover - 614 pages 3 edition (December 23, 1998) Prentice Hall; ISBN: 0131814885. (Used by K. Bhutani.)

Peter J. Cameron (CU, QA164 C346 1994), Combinatorics : Topics, Techniques, Algorithms, $32.95,  355 pages (August 1994), Cambridge Univ Pr (Pap Txt); ISBN: 0521457610.

Herbert Ryser, Combinatorial Mathematics (Carus Mathematical Monographs No. 14), List Price: $15.00, Hardcover Vol. 14 (September 1963), Mathematical Assn of Amer; ISBN: 0883850141.

J. H. Van Lint and R.M. Wilson (CU, QA164 .L56 1992), A Course in Combinatorics,  $35.95, Paperback - 544 pages (July 1992), Cambridge Univ Pr (Short); ISBN: 0521422604.