Roberts, Joe. <br/><br/>
Elementary number theory a problem oriented approach 

 - Cambridge, Mass. :  MIT,  1977 
 - 375 p. 
<br/><br/><label>LCCN: </label>49326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Números, teoría de los.
<br/><br/><label>Dewey Class. No.: </label>512.7  / R6