APA-referens (7:e uppl.)

Dudley, U. (2008). Elementary number theory (2d ed., Dover ed.). Dover Publications.

Chicago-referens (17:e uppl.)

Dudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Mineola, N.Y.: Dover Publications, 2008.

MLA-referens (8:e uppl.)

Dudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Dover Publications, 2008.