Dudley, Underwood <br/><br/>
A guide to elementary number theory 

 - 1st ed 
 - Washington, DC:  Mathematical Association of America,  2009 
 - x, 141 p. : ill. ; 24 cm 
<br/><br/><label>ISBN: </label>9780883853474 
<br/><br/><label>Dewey Class. No.: </label>512.7 DUD