Levin, O. (2016). Discrete mathematics: An open introduction (2nd edition.). [publisher not identified].
Lua i Stíl Chicago (17ú heag.)Levin, Oscar. Discrete Mathematics: An Open Introduction. 2nd edition. [Place of publication not identified]: [publisher not identified], 2016.
Lua MLA (9ú heag.)Levin, Oscar. Discrete Mathematics: An Open Introduction. 2nd edition. [publisher not identified], 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.