Dudley, U. (2008). Elementary number theory (2d ed., Dover ed.). Dover Publications.
Chicago-viite (17. p.)Dudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Mineola, N.Y.: Dover Publications, 2008.
MLA-viite (8. p.)Dudley, Underwood. Elementary Number Theory. 2d ed., Dover ed. Dover Publications, 2008.
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