Hardy, G. H. 1877-1947. An introduction to the theory of numbers / by G. H. Hardy and E. M. Wright. - 5th ed. - Oxford : New York : Clarendon Press ; Oxford University Press, 1979. - xvi, 426 p. : diagrs. ; 24 cm. Includes bibliography (p. [417]-419) and index. ISBN: 0198531702 0198531710 Subjects--Topical Terms: Number theory. LC Class. No.: QA241 / .H28 1979