Blum, Raymond. <br/><br/>
Math tricks, puzzles and games 
Raymond Blum illustrated by Jeff Sinclair. 
 - New York  Sterling Pub. Co.  1994. 
 - 125 p. : ill. ; 21 cm. 
<br/><br/><label>ISBN: </label>0806905824  RM15.59 
<br/><br/><label>LCCN: </label>93-46750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical recreations--Juvenile literature