Niederman Derrick <br/><br/>
Hard-to-solve math puzzles 

 - New Delhi  2003 
 - 92p 
<br/><br/><label>ISBN: </label>978-8172452926 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510.2 NIEH