Well, David. <br/><br/>
The Contest Problem Book Ix  :american mathematics competitions (amc 12) 2001-2007 

 - America,  Mathematical association of america:  2008. 
 - xv, 214p. 
<br/><br/><label>ISBN: </label>9780883858264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>530 W4623c