Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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