Dudley, U. (2008). Elementary number theory (2d ed., Dover ed.). Dover Publications.
Dyfyniad Arddull ChicagoDudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Mineola, N.Y.: Dover Publications, 2008.
Dyfyniad MLADudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Dover Publications, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.