Dudley, U. (2008). Elementary number theory (2d ed., Dover ed.). Dover Publications.
Lua i Stíl Chicago (17ú heag.)Dudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Mineola, N.Y.: Dover Publications, 2008.
Lua MLA (8ú heag.)Dudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Dover Publications, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.