Ensley, D. E., & Crawley, J. W. (2006). Discrete mathematics: Mathematical reasoning and proof with puzzles, patterns, and games. Wiley.
Цитирование в стиле Чикаго (17-е изд.)Ensley, Douglas E., и J. Winston Crawley. Discrete Mathematics: Mathematical Reasoning and Proof with Puzzles, Patterns, and Games. Hoboken, N.J: Wiley, 2006.
Цитирование MLA (9-е изд.)Ensley, Douglas E., и J. Winston Crawley. Discrete Mathematics: Mathematical Reasoning and Proof with Puzzles, Patterns, and Games. Wiley, 2006.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.