APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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