Hardy, G. H. ; Wright, E. M. <br/><br/>
An introduction to the theory of numbers 
/ by G. H. Hardy ; E. M. Wright 
 - 5th ed. 
 - London:  Oxford University press,  1981. 
 - 426p. 
<br/><br/><label>Dewey Class. No.: </label>512.7  / HAR/A