Biggs,Norman.L. (2012). Discrete Mathematics (2nd ed.). Oxford Uni.
Lua i Stíl Chicago (17ú heag.)Biggs,Norman.L. Discrete Mathematics. 2nd ed. New Delhi: Oxford Uni, 2012.
Lua MLA (9ú heag.)Biggs,Norman.L. Discrete Mathematics. 2nd ed. Oxford Uni, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.