Dudley, Underwood. <br/><br/>
Elementary number theory 
Underwood Dudley. 
 - 2d ed. 
 - San Francisco  W. H. Freeman  c1978. 
 - ix, 249 p.  24 cm. 
 - A series of Books in the Mathematical Sciences .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 225-226. 
<br/><br/><label>ISBN: </label>071670076X 
<br/><br/><label>LCCN: </label>78005661 //r92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory.
<br/><br/><label>LC Class. No.: </label>QA241  / .D79 1978 
<br/><br/><label>Dewey Class. No.: </label>512/.7