Biscuits of number theory 

 - Washington:  Mathematical Association of America,  2009 
 - xiii, 311 p. : ill. ; 27 cm. 
<br/><br/><label>ISBN: </label>9780883853405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic
<br/><br/><label>Dewey Class. No.: </label>517 BEN