Dudley, Underwood. <br/><br/>
Elementary number theory 
Underwood Dudley. 
 - New York  W.H. Freeman & Co.  1969 
 - ix, 249 p. 
 - A Series of books in mathematicssciences .
<br/><br/>Bibliography : p. 187-189 
<br/><br/><label>ISBN: </label>071670076X 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numbers, Theory of.