APA (7th ed.) Citation

Ensley, D. E., & Crawley, J. W. (2006). Discrete mathematics: Mathematical reasoning and proof with puzzles, patterns, and games. Wiley.

Chicago Style (17th ed.) Citation

Ensley, Douglas E., and J. W. Crawley. Discrete Mathematics: Mathematical Reasoning and Proof with Puzzles, Patterns, and Games. Hoboken: Wiley, 2006.

MLA (9th ed.) Citation

Ensley, Douglas E., and J. W. Crawley. Discrete Mathematics: Mathematical Reasoning and Proof with Puzzles, Patterns, and Games. Wiley, 2006.