Introductory combinatorics

Introductory Combinatorics - Brualdi Richard - 1977 Vintage Hardcover

Applied Combinatorics - Hardcover, by Roberts Fred S. - Good

Introductory Combinatorics by Brualdi, Richard - 1977 Hardcover

Enumerative Combinatorics Volume 1 by Richard P. Stanley- Hardcover- Mathematics

Combinatorics Through Guided Discovery - Paperback By Bogart, Kenneth P - GOOD

Introductory Combinatorics by Kenneth P. Bogart

Introductory Combinatorics (3rd - Hardcover, by Brualdi Richard A. - Acceptable