Citazione Stile APA (7a Edizione)

Allenby, R. B. J. T., & Slomson, A. B. (2011). How to count: An introduction to combinatorics (2nd ed.). CRC Press.

Citazione stile Chigago Style (17a edizione)

Allenby, R. B. J. T., e A. B. Slomson. How to Count: An Introduction to Combinatorics. 2nd ed. Boca Raton, Fla: CRC Press, 2011.

Citatione MLA (9a ed.)

Allenby, R. B. J. T., e A. B. Slomson. How to Count: An Introduction to Combinatorics. 2nd ed. CRC Press, 2011.