Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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